Immunology and serology.
D000486:Allergy and Immunology; D019411:Clinical Laboratory Techniques; D003095:Collagen Diseases / Q000276:immunology; D003729:Dental Care; D006801:Humans; D009181:Mycoses / Q000276:immunology; D012699:Serology; D012859:Sjogren's Syndrome / Q000276:immunology; D013290:Streptococcal Infections / Q000276:immunology; D013587:Syphilis / Q000276:immunology; D014652:Vascular Diseases / Q000276:immunology