H:
Health Services Technology Assessment Texts (HSTAT) - Provides access to full-text documents useful for providing health information and for health care decision making [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM), National Information Center on Health Services Research (NICHSR)]

Heart Health Online - Provides a gateway for health professionals and consumers to information about preventing, diagnosing, and treating heart disease [Department of Health and Human Services (HHS), Food and Drug Administration (FDA)]

L:
LOCATORPlus - Catalog of books, journals, and audiovisuals in the National Library of Medicine collections [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

M:
MEDLINE/PubMed - Database with millions of references, primarily from MEDLINE, to journal articles in life sciences with a concentration on biomedicine [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM), National Center for Biotechnology Information (NCBI)]

Mammography Program for the Mammography Quality Standards Act of 1992 (MQSA) - Informs mammography facility personnel, inspectors, and other interested individuals about mammography quality standards [Department of Health and Human Services (HHS), Food and Drug Administration (FDA)]

Measure of Confidence - NIST and Quality in Health Care [Department of Commerce (DOC), National Institutes of Standards and Technology (NIST)]

Medical Encyclopedia - Encyclopedia with articles about diseases, tests, symptoms, and treatments [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

MedlinePlus - Web site with authoritative consumer health information from NIH and others [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

MedlinePlus Espanol - Spanish version of the Web site with authoritative consumer health information from NIH and others [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

MedlinePlus Interactive Health Tutorials - Interactive health education tutorials that use animated graphics to explain a procedure or condition in easy-to-read language [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

N:
NLM Gateway - A single Web interface that searches multiple National Library of Medicine databases [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

National Institute of Allergy and Infectious Diseases (NIAID) - Provides dependable information about infectious, immunologic and allergic diseases. [Department of Health and Human Services (HHS), National Inst. of Health (NIH)]

R:
Reports of the Surgeon General - Digitized collection of official reports, conference and workshop reports, and proceedings from the Office of the Surgeon General [Department of Health and Human Services (HHS), National Inst. of Health (NIH), National Library of Medicine (NLM)]

W:
Whole-Body CT Scanning - The scientific facts about the potential risks of undergoing a whole-body scan using computed tomography [Department of Health and Human Services (HHS), Food and Drug Administration (FDA)]