title: Letter: Of worms and asthma, or Tullis revisited.
mesh_terms: D000818:Animals; D000941:Antigens; D001249:Asthma / Q000276:immunology; D002648:Child; D004285:Dogs; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology*; D007073:Immunoglobulin E / Q000032:analysis; D010271:Parasites / Q000276:immunology*; D010272:Parasitic Diseases / Q000276:immunology; D051381:Rats; D015047:Zoonoses / Q000276:immunology
chemical_list: D000941:Antigens; D007073:Immunoglobulin E