title: Allergy practice in retrospect and in prospect.
mesh_terms: D001249:Asthma / Q000188:drug therapy / Q000209:etiology / Q000503:physiopathology; D002908:Chronic Disease; D004342:Drug Hypersensitivity; D004502:Education, Medical, Continuing; D005512:Food Hypersensitivity; D049673:History, 20th Century; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis / Q000266:history* / Q000503:physiopathology; D007158:Immunologic Techniques / Q000266:history*; D007167:Immunotherapy; D012882:Skin Tests / Q000266:history; D014481:United States