Acute Infection and Early Disease Research Program   2 studies
Adult AIDS Clinical Trials Group   23 studies
African Malaria Network Trust   6 studies
AIDS Malignancy Consortium   1 study
American Academy of Family Physicians National Research Network   1 study
American College of Radiology Imaging Network   25 studies
ANZGOG   2 studies
ANZICS Clinical Trials Group   1 study
Aptium Oncology Research Network   3 studies
Arizona Oncology Associates   1 study
Asthma Clinical Research Network   2 studies
Atopic Dermatitis and Vaccinia Network   2 studies
Australasian Gastro-Intestinal Trials Group   6 studies
Australian and New Zealand Intensive Care Society Clinical Trials Group   3 studies
Austrian South Oncology Group   1 study
Autism Treatment Network   1 study
Blood and Marrow Transplant Clinical Trials Network   17 studies
Bp Consulting, Inc   11 studies
California Transplant Donor Network   1 study
Canadian Arthritis Network   6 studies
Canadian Fabry Research Consortium   1 study
Canadian HIV Trials Network   12 studies
Cancer and Leukemia Group B   297 studies
Center for International Blood and Marrow Transplant Research   5 studies
Central Texas Primary Care Research Network   1 study
Centre for the AIDS Programme of Research in South Africa   3 studies
Cervical Artery Dissections and Ischemic Stroke Patients - Consortium   1 study
CF Therapeutics Development Network Coordinating Center   6 studies
Childhood Asthma Research and Education Network   2 studies
Children's Oncology Group   221 studies
China Spinal Cord Injury Network   4 studies
Chinese Medical Association   1 study
Chronic Lymphocytic Leukemia Research Consortium   5 studies
Chronic Obstructive Pulmonary Disease Clinical Research Network   2 studies
Clinical Associates Research, Maryland   1 study
Community Programs for Clinical Research on AIDS   3 studies
Competence Network Viral Hepatitis   1 study
Cooperative International Neuromuscular Research Group   9 studies
Cooperative Study Group A for Hematology   10 studies
Danish Study Group   2 studies
Dental Practice-Based Research Network   2 studies
Early Detection Research Network   3 studies
Eastern Cooperative Oncology Group   323 studies
Elder Network   1 study
European Group for Blood and Marrow Transplantation   7 studies
European Myeloma Network   1 study
European Organization for Research and Treatment of Cancer   259 studies
Flanders Medical Research Program   7 studies
French Study Group on Chronic Lymphoid Leukemia   1 study
German Off Pump Coronary Artery Bypass in Elderly Study Group   1 study
German Research Network On Schizophrenia   6 studies
Glaser Pediatric Research Network   7 studies
Great Lakes Research Into Practice Network   2 studies
Guang'an Men Hospital   1 study
Gynecologic Oncology Group   192 studies
HamesNet Research Network   1 study
Hand and Upper Limb Clinic, Canada   1 study
HIV Prevention Trials Network   2 studies
HIV Vaccine Trials Network   12 studies
Huntington Study Group   7 studies
Immune Tolerance Network   26 studies
Inner-City Asthma Consortium   2 studies
Institut für Klinisch-Kardiovaskuläre Forschung GmbH   2 studies
Intergroupe Francophone du Myelome   2 studies
International AIDS Vaccine Initiative   9 studies
International BFM Study Group   2 studies
International Breast Cancer Study Group   24 studies
International Clinical Epidemiology Network (INCLEN) TRUST   2 studies
Interstitial Lung Disease Study Group, Korea   1 study
Irish Clinical Oncology Research Group   8 studies
Isfahan Ophthalmology Research Center   1 study
Istituti Tumori Giovanni Paolo II   1 study
Italian Research Group for Gastric Cancer   1 study
Italian Sarcoma Group   3 studies
Japan Biological Agent Study Integrated Consortium   1 study
Japan Society of Laparoscopic Colorectal Surgery   1 study
JDRF Artificial Pancreas Project   2 studies
Kompetenznetz Sepsis   2 studies
Korean Glaucoma Society   1 study
Korean Rectal Cancer Study Group   1 study
Lancashire Care NHS Foundation Trust   1 study
Ludwig Boltzmann Institute for COPD Research   2 studies
Maestro Clinical, Inc.   1 study
Meshalkin Research Institute of Pathology of Circulation   2 studies
Miami Research Associates   1 study
Microbicide Trials Network   7 studies
Military Infectious Diseases Research Program (MIDRP)   3 studies
Mycoses Study Group   2 studies
Myeloproliferative Disorders-Research Consortium   7 studies
National Cancer Research Network   3 studies
National Comprehensive Cancer Network   18 studies
National Healthcare Group, Singapore   7 studies
National Research System-College of Family Physicians of Canada   2 studies
National Surgical Adjuvant Breast and Bowel Project (NSABP)   54 studies
Nausica   1 study
NCCR (National Center of Competence in Resaerch, Switzerland)   1 study
Neuro-Oncology Working Group of the German Cancer Society   1 study
Neurological Emergencies Treatment Trials Network (NETT)   1 study
New Hope Medical Center   1 study
New York Cancer Consortium   2 studies
Nordic MDS Group   1 study
North Central Cancer Treatment Group   263 studies
North Toronto Primary Care Research Network   1 study
Ontario Cancer Research Network   9 studies
Ontario HIV Treatment Network   8 studies
Ospedale Sacro Cuore - Don Calabria   1 study
Pearl Network   2 studies
Pediatric AIDS Clinical Trials Group   1 study
Pediatric Brain Tumor Consortium   27 studies
Pediatric European Network for Treatment of AIDS   1 study
Pediatric Pharmacology Research Units Network   1 study
Physical Therapy Clinical Research Network   3 studies
Polish Colorectal Cancer Study Group   2 studies
Polish Lymphoma Research Group   1 study
Probity Medical Research   1 study
Radiation Therapy Oncology Group   152 studies
Rare Diseases Clinical Research Network   29 studies
Regenerative Medicine Network   1 study
Simon Fraser Orthopaedic Fund   2 studies
Socar Research SA   1 study
Sociedad Andaluza de Enfermedades Infecciosas   4 studies
Societa Italiana di Chirurgia ColoRettale   1 study
Society of Military Orthopedic Surgeons   1 study
Southwest Oncology Group   335 studies
Swiss HIV Cohort Study   2 studies
Swiss Neonatal Network   1 study
Thalassemia Clinical Research Network   2 studies
The Canadian Blood and Marrow Transplant Group   2 studies
The Korean Society of Pediatric Hematology Oncology   5 studies
The Parkinson Study Group   6 studies
Transfusion Medicine/Hemostasis Clinical Research Network   2 studies
Tuberculosis Network European Trialsgroup   1 study
UK Dermatology Clinical Trials Network   1 study
Unidad de Investigacion Clinica en Medicina S.C.   1 study
Universal Research Group   1 study
University of Wisconsin Chemoprevention Consortium   1 study
US Military HIV Research Program   2 studies
Vermont Oxford Network   2 studies
Vulnerable Plaque Society   1 study