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Cross, G. D., Mandy, Francis, Nicholson, J. K. A., and McDougal, J. S.
Guidelines for Performing Single Platform Absolute CD4+ T-Cell Determinations
with CD45 Gating in Persons Infected with Human Immunodeficiency Virus (HIV).
MMWR.Morbidity and Mortality Weekly Report Vol. 52 RR-2, 1-13. 1-31-2003.
Ref Type: Report
Ref ID: 307
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Ridderhof JC, Williams LO, Legios S, et al: Assessment of laboratory performance
of nucelic acid amplification tests for decetion of mycobacterium tuberculosis.
J.Clin.Microbiol. 2003;41:5258-5261.
Ref ID: 330
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Schalla, W. O., Stankovic, Ana, Martin, R., and et al. Guidelines for Laboratory
Testing and Result Reporting of Antibody to Hepatitis C Virus. MMWR.Morbidity
and Mortality Weekly Report Vol. 52 No. RR-3, 1-15. 2003.
Ref Type: Report
Ref ID: 319
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Cross GD, Handsfield JH: Comparison of Absolute CD4 and CD8 T-cell Counts,
Multi-platform vs. Single-Platform Methods: Results from a Performance
Evaluation Program. International Aids Conference 2 A.D.;(In Press)
Ref ID: 300
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Hofherr LK, Francis DP, Astles JR, Schalla WO: HIV-1 Antiretroviral Resistance
Testing Laboratories. Clin Lab Sci 2002;15:213-219.
Ref ID: 314
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Schalla WO, et al: CDC Guidelines for Reporting HIV Laboratory Test Results. Lab
Med 2002;33:2-6.
Ref ID: 311
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Schalla, W. O. and et al. Notice to Readers:
Approval of a New Rapid Test for HIV Antibody. MMWR.Morbidity and
Mortality Weekly Report vol. 51 RR 46, 1-3. 11-22-2002.
Ref Type: Report
Ref ID: 309
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Schalla, W. O. and et al. Notice to Readers: Potential Shortage of Supplemental
Test Kits for Detecting HIV-1 Antibodies. MMWR.Morbidity and Mortality Weekly
Report Vol. 51 RR-18, 395-396. 5-10-2002.
Ref Type: Report
Ref ID: 312
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Francis DP, Peddecord KM, Hofherr LK, Astles JR, Schalla WO: Viral Load Test
Reports. Arch Pathol Lab Med 2001;125:1546-1554.
Ref ID: 289
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Schalla, W. O., Schulte, Joann, and et al. Guidelines
for Laboratory Test Result Reporting of Human Immunodeficiency Virus Type 1
Ribonucleic Acid Determination. MMWR.Morbidity and Mortality Weekly
Report Vol. 50 RR-20, 1-12. 11-16-2001.
Ref Type: Report
Ref ID: 310
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Cross GD, Handsfield JH, Schalla WO: Extreme Values Reported for Cd4 Absolute
Cell Counts by Laboratories Using Dual-Platform Methods: Results From a
Performance Evaluation Program. Cytometry 2000;42:314
Ref ID: 322
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Williams LO, Blumer SO, Schalla WO, et al: Laboratory Performance in Human
T-Lymphotrophic Virus Types I/II (HTLV) Analysis. Transfusion
2000;40:1514-1521.
Ref ID: 298
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Cross GD, Handsfield JH, Schalla WO: CD4 T-Cell Enumeration: Single-Platform
Methods May Yield More Reproducible Results Than Multi-Platform Methods.
Cytometry 1999;38:327
Ref ID: 321
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Francis DP, Peddecord KM, Hofherr LK, Benenson AS, Schalla WO: T-Lymphocyte
Immunophenotyping Blind Proficiency Testing: A Model System for CD4+ T-Cells.
Clin Lab Sci 1999;12:278-289.
Ref ID: 11
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Astles JR, Lipman HB, Schalla WO, et al: Impact of Quality Control on Accuracy
in Enzyme Immunoassay Testing from Human Immunodeficiency Virus Type 1
Antibodies. Arch.Pathol.Lab.Med. 1998;122:700-707.
Ref ID: 14
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Cross GD, Handsfield JH, Schalla WO: Comparison of Absolute CD4 T-cell Counts,
Multi-platform vs. Single-Platform Methods: Results for a Performance
Evaluation Program. Cytometry 1998;34:296
Ref ID: 183
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Rosner E, Siragusa M, Schalla WO, Cross GD, Cohn RD, Hearn TL: Assessment of the
Impact of a CD4+ T-Cell Testing Laboratory Improvement Program.
Arch.Pathol.Lab.Med. 1998;122:512-519.
Ref ID: 5
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Cruz JR, Schalla WO, Larsen SA: Quality Assessment Activities in Latin America
and the Caribbean. MLO 1997;29:40-42.
Ref ID: 55
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Nicholson, J. K. A., Hearn, T. L., Cross, G. D., and White, M. D.
1997 Revised Guidelines for Performing CD4+ T-Cell Determinations in Persons
Infected with Human Immunodeficiency Virus (HIV). MMWR.Morbidity and
Mortality Weekly Report 46(RR-2), 1-29. 1-10-1997.
Ref Type: Report
Ref ID: 73
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Schalla, W. O. Performance Evaluation Programs
for Determining HIV-1 Viral Loads, Testing for HIV p24 Antigen, and Identifying
Mycobacterium tuberculosis Using Nucleic Acid Amplification Tests. MMWR.Morbidity
and Mortality Weekly Report 46(07), 155-156. 2-21-1997.
Ref Type: Report
Ref ID: 54
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Cross GD, Schalla WO, Taylor CL, Siragusa M, Cohn RD, Gaunt EE: Precision of
Absolute CD4 Counts Between Laboratories: Results of a Pilot Study. Cytometry
1996;26:86
Ref ID: 182
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Hearn TL: Standards of Laboratory Practice for Human Immunodeficiency Virus
(HIV) Testing, in Schochetman G, George JR (eds): Springer-Verlag; 1994:
Ref ID: 84
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Performance Evaluation Program for Mycobacterium tuberculosis
Drug-Susceptibility Testing Process. MMWR.Morbidity and Mortality Weekly Report
43(1), 17-18. 1-14-1994.
Ref Type: Report
Ref ID: 100
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Hancock JS, Taylor RN, Johnson CA, Gerber AR, Schalla WO: Quality of Laboratory
Performance in Testing for Human Immunodeficiency Virus Type 1 Antibody.
Identification of Variables Associated with Laboratory Performance.
Arch.Pathol.Lab.Med. 1993;117:1148-1155.
Ref ID: 86
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Peddecord KM, Benenson AS, Hofherr LK, et al: Variability of Reporting and Lack
of Adherence to Consensus Guidelines in Human T-lymphocyte Immunophenotyping
Reports: Results of a Case Series. J.Acquir.Immune.Defic.Syndr. 1993;6:823-830.
Ref ID: 109
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Peddecord KM, Hofherr LK, Benenson AS, et al: Sources of Influence in Changing
Policies and Procedures for HIV-1 Testing. Clin Lab Sci 1993;6:359-365.
Ref ID: 194
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D.J. Hewitt, K.M. Peddecord, D.P. Francis, A.S. Benenson, L.K. Hofherr, K.L.
Ferran, R.S. Garfein, and A.R. Gerber. Content and Design of Laboratory Report
Forms For Human Immunodeficiency Virus Type 1 Antibody Testing. Amer. J. Clin.
Path. 1992, Aug. 98:199-204.
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Blumer SO, Hearn TL, Schalla WO, Cross GD, Valdiserri RO: Human T-lymphotropic
Virus Type I/II. Status of Enzyme Immunoassay and Western Blot Testing in the
United States in 1989 and 1990. Arch.Pathol.Lab.Med. 1992;116:471-476.
Ref ID: 111
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Cross GD, Schalla WO, Hancock JS, et al: Analytic Sensitivity and Specificity of
Enzyme Immunoassay Results in Testing for Human Immunodeficiency Virus Type 1
Antibody. Arch.Pathol.Lab.Med. 1992;116:477-481.
Ref ID: 88
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Francis DP, Peddecord KM, Ferran KL, et al: Use of a Modified Nominal Group
Process for Improving Laboratory Performance in Human Immunodeficiency Virus
Type 1 Antibody Testing. Reaching Consensus on Three Questions Concerning HIV-1
Testing. Clinical Laboratory Management Review 1992;6:537-538-543-546.
Ref ID: 110
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Hofherr LK, Peddecord KM, Benenson AS, et al: Methods for a Model Blind
Proficiency Testing System. Clin Lab Sci 1992;5:160-164.
Ref ID: 213
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Peddecord KM, Benenson AS, Hofherr LK, et al: Analytic Results of HIV-1 Testing
Using Blind Proficiency Testing. Clin Lab Sci 1992;5:165-171.
Ref ID: 114
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Peddecord KM, Benenson AS, Hofherr LK, et al: Identification of Nonanalytic
Issues in HIV-1 Antibody Testing Using Blind Proficiency Testing. Clin Lab Sci
1992;5:172-176.
Ref ID: 113
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Schalla, W. O. and et al.
Availability of Flow Cytometric Immunophenotyping of Lymphocytes to Hospital
Patients -- United States, 1990. MMWR.Morbidity and Mortality Weekly
Report 41(33), 608-610. 8-21-1992. Atlanta, GA, Centers for Disease Control.
Ref Type: Report
Ref ID: 196
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Schalla, W. O., Blumer, S. O., and Hearn, T. L. Update: Serologic Testing for
Human T-Lymphotropic Virus Type I -- United States, 1989 and 1990.
MMWR.Morbidity and Mortality Weekly Report 41(15), 259-262. 4-17-1992.
Ref Type: Report
Ref ID: 97
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Taylor RN: From the CDC: The Laboratory Performance Information and Exchange
System. MLO 1992;
Ref ID: 202
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A.R. Gerber, G.D. Cross, W.O. Schalla, J.S. Hancock, H.W. Muir, T.L. Hearn, and
R.O. Valdiserri. Evaluation of Laboratory Performance of T-Lymphocyte
Immunophenotyping In Support of Early HIV-1 Intervention and Prevention.
Publication of Abstracts, VII International Conference on AIDS, Florence,
Italy, June 16-21, 1991.
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Blumer, S. O., Schalla, W. O., and Cross, G. D.
Interpretive Criteria Used to Report Western Blot Results for HIV-1-Antibody
Testing -- United States. MMWR.Morbidity and Mortality Weekly Report
40(40), 692-695. 10-11-1991.
Ref Type: Report
Ref ID: 87
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G.D. Cross, W.O. Schalla, S.O. Blumer, T.L. Hearn, and R.O. Valdiserri. Enzyme
Immunoassay (EIA) Results. American Society for Microbiology May 1991; Dallas,
Texas.
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Gerber AR, Valdiserri RO, Johnson CA, Schwartz RE, Hancock JS, Hearn TL: Quality
of Laboratory Performance in Testing for Human Immunodeficiency Virus Type 1
Antibody. Variables Associated in Multivariate Analyses. Arch.Pathol.Lab.Med.
1991;115:1091-1096.
Ref ID: 89
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R.N. Taylor, G.D. Cross, S.O. Blumer, A.R. Gerber, W.O. Schalla, and T.L. Hearn.
Analytic Specificities and Sensitivities of Indirect Immunofluorescence Results
In Testing for Human Immunodeficiency Virus Type 1 (HIV-1) Antibody From 1988
to 1990. Publication of Abstracts, VII International Conference on AIDS,
Florence, Italy, June 16-21, 1991.
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S.O. Blumer, W.O. Schalla, G.D. Cross, J.S. Hancock, H.W. Muir, and T.L. Hearn.
Analysis of Indeterminate Human T-lymphotropic Virus Type I (HTLV-I) Western
Blot Interpretations Reported for HTLV-Type II Infected Individuals.
Publication of Abstracts, VII International Conference on AIDS, Florence,
Italy, June 16-21, 1991.
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T.L. Hearn, R.O. Valdiserri, C.A. Johnson, J.S. Hancock, R.E. Schwartz, and A.R.
Gerber. Correlation Between Laboratory Personnel Parameters and The Quality of
HIV-1 Antibody Testing In U.S. Laboratories. Publication of Abstracts, VII
International Conference on AIDS, Florence, Italy, June 16-21, 1991.
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Taylor RN: Information About AIDS. Ann.Intern.Med. 1991;115:160
Ref ID: 201
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Valdiserri RO, Cross GD, Gerber AR, Schwartz RE, Hearn TL: Capacity of U.S. Labs
to Provide TLI in Support of Early HIV-1 Intervention. Am.J.Public Health
1991;81:491-494.
Ref ID: 90
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W.O. Schalla, G.D. Cross, S.O. Blumer, J.S. Hancock, A.R. Gerber, H.W. Muir, and
T.L. Hearn. Update On Western Blot Testing: Performance Evaluation of
Laboratories That Test For Human Immunodeficiency Virus Type 1 (HIV-1)
Antibodies. Publication of Abstracts, VII International Conference on AIDS,
Florence, Italy, June 16-21, 1991.
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A.R. Gerber, C.A. Johnson, R.E. Schwartz, T.L. Hearn, and R.O. Valdiserri.
Association of Performance On EIA for HIV-1 Antibody With Laboratory
Characteristics And Testing Practices. Publication of Abstracts for the Sixth
International AIDS Conference, June 20-24, 1990, San Francisco, California.
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Blumer, S. O. and Schalla, W. O. Indeterminate Western Blot Results on Human
T-Lymphotropic Virus Type I/II (HTLV)-I/II) Antibody-Positive Samples. 1.
2-26-1990. MPEP Performance Bulletin.
Ref Type: Report
Ref ID: 149
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Blumer, S. O., Cross, G. D., and Schalla, W. O. Laboratory Reports and Reporting
the Results of Human immunodeficiency Virus Type 1 (HIV-1) Testing. 2.
5-10-1990. MPEP Performance Bulletin.
Ref Type: Report
Ref ID: 150
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Gerber, A. R., Schalla, W. O., and Hearn, T. L.
Update: Serologic Testing for HIV-1 Antibody --United States, 1988 and 1989.
MMWR.Morbidity and Mortality Weekly Report 39(22), 380-383. 6-8-1990.
Ref Type: Report
Ref ID: 96
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MPEP Performance Bulletin No. 1. Indeterminate Western Blot Results On Human
T-Lymphotropic Virus Type I/II (HTLV-I/II) Antibody-Positive Samples. Feb. 26,
1990. CDC Model Performance Evaluation Program. (Prepared by S.O. Blumer and
W.O. Schalla.)
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MPEP Performance Bulletin No. 2. Laboratory Reports and Reporting the Results of
Human Immunodeficiency Virus Type 1 (HIV-1) Testing. May 10, 1990. CDC Model
Performance Evaluation Program. (Prepared by S.O Blumer, G.D. Cross, and W.O.
Schalla.)
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S.O. Blumer, T.L. Hearn, W.O. Schalla, G.D. Cross, and R.O. Valdiserri.
Assessment Of Human T-Cell Lymphotrophic Virus Type I/II Antibody Testing.
1990. Publication of Abstracts for the Sixth International AIDS Conference,
June 20-24, 1990, San Francisco, California.
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Schalla WO, Hearn TL, Taylor RN, Eavenson E, Valdiserri RO, Essien J: CDC's
Model Performance Evaluation Program: Assessment of the Quality of Laboratory
Performance for HIV-1 Antibody Testing. Public Health Rep. 1990;105:167-171.
Ref ID: 94
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Taylor RN, Hearn TL, Schalla WO, Valdiserri RO: Indirect Immunofluorescence Test
Performance and Questionnaire Results from the Centers for Disease Control
Model Performance Evaluation Program for Human Immunodeficiency Virus Type 1
Testing. J.Clin.Microbiol. 1990;28:1799-1807.
Ref ID: 92
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Valdiserri RO, Taylor RN, Hearn TL, Schalla WO, Muir HW: Centers for Disease
Control Perspective on Quality Assurance for Human Immunodeficiency Virus Type
1 Antibody Testing. Model Performance Evaluation Program. Arch.Pathol.Lab.Med.
1990;114:263-267.
Ref ID: 95
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W.O. Schalla, G.D. Cross, T.L. Hearn, S.O. Blumer, R.N. Taylor, and R.O.
Valdiserri. Accuracy of Western Blot Testing For Human Immunodeficiency Virus
Type 1 (HIV-1) Infection. Publication of Abstracts for the 1990 American
Society for Microbiology Annual Meeting, May 13-17, 1990, Anaheim, California.
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W.O. Schalla, T.L. Hearn, G.D. Cross, S.O. Blumer, R.N. Taylor, and R.O.
Valdiserri. Human Immunodeficiency Virus Type-1 (HIV-1) Antibody Testing:
Accuracy of Western Blot Results. Publication of Abstracts for the Sixth
International AIDS Conference, June 20-24, 1990, San Francisco, California.
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W.O. Schalla, T.L. Hearn, R.N. Taylor, E. Eavenson, R.O. Valdiserri. The Centers
For Disease Control's Model Performance Evaluation Program: Assessment Of The
Quality of Laboratory Testing For Human Immunodeficiency Virus Type 1 (HIV-1)
Infection. Collaborative article with Family of SeroSurveys. 1990. Public
Health Reports 105(2):167-71.
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Benenson AS, Peddecord KM, Hofherr LK, Ascher MS, Taylor RN, Hearn TL: Reporting
the Results of Human Immunodeficiency Virus Testing. JAMA 1989;262:3435-3438.
Ref ID: 91
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Hearn, T. L., Schalla, W. O., and Taylor, R. N. Performance Evaluation for Human
T-Lymphotropic Virus Type 1 Antibody Testing Being Implemented by CDC. ASTPHLD
Newsletter . 1989.
Ref Type: Newsletter Article
Ref ID: 122
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Hearn, T. L., Schalla, W. O., and Taylor, R. N. Results from CDC's Model
Performance Evaluation Program Presented at the Fifth International Conference
on AIDS. ASTPHLD Newsletter . 1989.
Ref Type: Newsletter Article
Ref ID: 123
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Schalla, W. O. and Hearn, T. L.
Interpretation and Use of the Western Blot Assay for Serodiagnosis of Human
Immunodeficiency Virus Type 1 Infections. MMWR.Morbidity and Mortality
Weekly Report 38(S-7), 1-7. 7-21-1989.
Ref Type: Report
Ref ID: 106
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Schalla, W. O., Hearn, T. L., Valdiserri, R. O., Blumer, S. O., and Taylor, R.
N. Current
Trends Problems Created by Heat-Inactivation of Serum Specimens Before HIV-1
Antibody Testing. MMWR.Morbidity and Mortality Weekly Report 38(23),
407-408, 413. 6-16-1989. Atlanta, GA, Centers for Disease Control.
Ref Type: Report
Ref ID: 195
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Anonymous Serological Diagnosis of Human Immunodeficiency Virus Infection by
Western Blot Testing. The Consortium for Retrovirus Serology Standardization.
JAMA 1988;260:674-679.
Ref ID: 121
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Griffin CW: Model Performance Evaluation Program (HIV testing): Program
Overview. Infect.Control Hosp.Epidemiol. 1988;9:364
Ref ID: 108
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Griffin, C. W., Hearn, T. L., and Taylor, R. N. Current Trends Update: Serologic
Testing for Antibody to Human Immunodeficiency Virus . MMWR.Morbidity and
Mortality Weekly Report 36(52), 833-845. 1-8-1988.
Ref Type: Report
Ref ID: 107
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Griffin, C. W., Hearn, T. L., Schalla, W. O., and Taylor, R. N.
Serologic Testing for Antibody to Human Immunodeficiency Virus. MMWR.Morbidity
and Mortality Weekly Report Vol. 36(No. 52), 833-845. 1-8-1988.
Ref Type: Report
Ref ID: 214
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Schalla, W. O., Hearn, T. L., Griffin, C. W., and Taylor, R. N. Role of the
Centers for Disease Control in Monitoring the Quality of Laboratory Testing for
Human Immunodeficiency Virus Infection. Clinical Microbiology Newsletter
10(20), 156-159. 10-15-1988.
Ref Type: Newsletter Article
Ref ID: 192
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Taylor RN, et al: Serological Diagnosis of Human Immunodeficiency Virus
Infection by Western Blot testing. JAMA 1988;260:674-679.
Ref ID: 199
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Taylor RN, Przybyszewski VA: Sindrome da immunodeficienza acquisita. Valutazione
della efficienza die laboratori nella ricerca degli anticorpi HIV. Sommario dei
rilevarmenti esguiti dai Centri per il controllo della malattia. American
Journal of Clinical Pathology (Italian edition) 1988;9-22.
Ref ID: 126
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Taylor RN, Przybyszewski VA: Summary of the Centers for Disease Control Human
Immunodeficiency Virus (HIV) Performance Evaluation Surveys for 1985 and 1986.
Am.J.Clin.Pathol. 1988;89:1-13.
Ref ID: 125
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Schalla WO, Harrison HR': Western Blot Analysis of the Human Serum Response to
Mycoplasma hominis. Isr.J.Med.Sci. 1987;23:613-617.
Ref ID: 119
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Schalla, W. O., Hearn, T. L., Griffin, C. W., and Taylor, R. N. Performance
Evaluation Program: Testing for Human Immunodeficiency Virus Infection.
MMWR.Morbidity and Mortality Weekly Report 26(26), 614. 9-18-1987. Atlanta, GA,
Centers for Disease Control.
Ref Type: Report
Ref ID: 197
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Przybyszewski, V. A. and Taylor, R. N. Allergen-Specific Immunoglobulin E
Performance Evaluation Results. 1983. Atlanta, GA, CDC, PHS, HHS.
Ref Type: Serial (Book,Monograph)
Ref ID: 210
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Taylor RN, Fulford KM: Assessment of Laboratory Improvement by the Centers for
Disease Control Diagnostic Immunology Proficiency Testing Program.
J.Clin.Microbiol. 1981;13:356-368.
Ref ID: 220
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Taylor, R. N. and Fulford, K. M. Laboratory Improvement in the CDC Proficiency
Testing Program. Clinical Immunology Newsletter 2, 15-19. 1981.
Ref Type: Newsletter Article
Ref ID: 221
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Taylor RN, Fulford KM, Przybyszewski VA, Pope V: Center for Disease Control
Diagnostic Immunology Proficiency Testing Program Results for 1978.
J.Clin.Microbiol. 1979;10:805-814.
Ref ID: 128
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Taylor RN, Fulford KM, Przybyszewski VA, Pope V: Center for Disease Control
Diagnostic Immunology Proficiency Testing Program Results for 1977.
J.Clin.Microbiol. 1978;8:388-395.
Ref ID: 129
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Taylor RN, Fulford KM, Przybyszewski VA, Pope V: Center for Disease Control
Diagnostic Immunology Proficiency Testing Program Results for 1976.
J.Clin.Microbiol. 1977;6:224-232.
Ref ID: 198
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Cross GD, Schalla WO, Taylor RN, Siragusa M, Cohn RD, Gaunt EE: Effect of
Specimen Age, Storage Temperature, and Shipping Conditions on Hematology and
Flow Cytometric Determinations of Absolute CD4+ T-Cells Counts, (UnPub)
Ref ID: 30
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