title: Immunotherapy in hay fever with two major allergens 19, 25 and partially purified extract of timothy grass pollen. A controlled double blind study. In vivo variables, season I.
mesh_terms: D000293:Adolescent; D000328:Adult; D000485:Allergens; D002986:Clinical Trials as Topic; D004306:Dose-Response Relationship, Immunologic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007167:Immunotherapy / Q000009:adverse effects; D008297:Male; D009299:Nasal Provocation Tests; D006109:Poaceae; D011058:Pollen; D006255:Rhinitis, Allergic, Seasonal / Q000628:therapy*; D012621:Seasons; D012882:Skin Tests; D014197:Trees
chemical_list: D000485:Allergens