title: Hyposensitisation in grass pollen hay fever. A double blind trial of alumn precipitated pollen extract and depot emulsion pollen extract compared with placebo injections.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008517:Phytotherapy; D010919:Placebos; D006109:Poaceae; D011058:Pollen / Q000627:therapeutic use*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D010919:Placebos