American Journal of Physiology - Gastrointestinal and Liver Physiology

Journal, American Physiological Society, Bethesda, USA

Medicine Online

Journal, Priory Lodge Education Ltd., Devon, UK

Annals of Oncology

Journal, Oxford Journals Online, UOP, Oxford, UK

Antibiotic Guide

Johns Hopkins University, Baltimore, USA

Emergency Medicine Journal

Journal, BMJ Publishing Group Ltd and the College of Emergency Medicine, London, UK 

AAA Medscape

WebMD Medscape Health Network, New York, USA

Antimicrobial Agents and Chemotherapy

Journal, American Society for Microbiology, Washington, USA

Endocrine Reviews

Journal, Oxford University Press, Oxford, UK

Metabolic Conditions

Association for Neuro-Metabolic Disorders, University of Kansas Medical Center, Sylvania, USA

Arteriosclerosis, Thrombosis and Vascular Biology

Journal, American Heart Association, Dallas, USA

MicroEKG Manual

B. Argyle, Mad Scientist Software Inc., Lehi, USA

Arthritis Research and Therapy

Journal, U.S. National Library of Medicine, Bethesda, USA

Endocrinology 1

Journal, OUP, Oxford, UK

Asian Cardiovascular and Thoracic Annals

Journal, SAGE Publications, Thousand Oaks, USA

Stress and Health

Journal, John Wiley & Sons, Inc., Hoboken, USA, free abstracts, paid full-text articles

National Institute of Diabetes and Digestive and Kidney Diseases

National Institutes of Health, Bethesda, Maryland, USA

European Journal of Biochemistry

Journal, Federation of European Biochemical Societies, John Wiley & Sons, Inc., Hoboken, USA 

Critical Care 2

Journal, PubMed Central, Bethesda, USA

Texas Heart Institute Journal

Journal, Texas University, National Library of Medicine, Bethesda, USA

Family Practice

Journal, OUP, Oxford, UK