title: Stepping stones in allergy. Chapter V. More about trouble makers in allergy.
mesh_terms: D004342:Drug Hypersensitivity / Q000266:history*; D005512:Food Hypersensitivity / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D007299:Insect Bites and Stings / Q000276:immunology; D010406:Penicillins / Q000276:immunology; D014481:United States
chemical_list: D010406:Penicillins