American Academy of Dermatology https://www.aad.org/
American Academy of Neurology https://www.aan.com/
American Association of Clinical Endocrinologists https://www.aace.com/
American Cancer Society https://www.cancer.org/
American College of Chest Physicians http://www.chestnet.org/
American College of Emergency Physicians https://www.acep.org/
American College of Gastroenterology https://gi.org/
American College of Physicians http://www.acponline.org
American College of Rheumatology https://www.rheumatology.org/
American College of Surgeons https://www.facs.org/
American Diabetes Association (ADA) http://www.diabetes.org
American Heart Association (AHA) http://www.americanheart.org
American Geriatrics Society http://www.americangeriatrics.org/
American Gynecological & Obstetric Society http://agosonline.org/
Arthritis Foundation (USA) http://www.arthritis.org
American Pediatric Society https://www.aps-spr.org/
American Psychiatric Association https://www.psychiatry.org/
American Society of Clinical Oncology https://www.asco.org/
American Society of Microbiologists https://www.asm.org/
Brain Trauma Foundation https://www.braintrauma.org/
British Society of Gerontology http://www.britishgerontology.org/
Clinical Immunology Society http://www.clinimmsoc.org/
European Society of Cardiology https://www.escardio.org/
European Society of Endocrinology http://www.ese-hormones.org/
Infectious Diseases Society of America http://www.idsociety.org
International AIDS Society https://www.iasociety.org/
International Society of Hypertension http://ish-world.com/index.htm
International Society of Internal Medicine http://www.isim-online.org/
International Society of Nephrology http://www.theisn.org/
National Cancer Institute http://www.nci.nih.gov
National Heart, Lung, and Blood Institute (NHLBI) http://www.nhlbi.nih.gov
National Osteoporosis Foundation http://www.nof.org
National Institute of Allergy and Infectious Diseases http://www.niaid.nih.gov
Society for Academic Emergency Medicine https://www.saem.org/
Sociedad Española d Medicina Interna https://www.fesemi.org/
Sociedad Española de Medicina Intensiva y Crítica (SEMICYUC) http://www.semicyuc.org/
Sociedad Latinoamericana de Medicina Interna (SOLAMI) http://solami.com.mx/
Society of Critical Care Medicine http://www.sccm.org/Pages/default.aspx
The Gerontological Society of America https://www.geron.org/
