title: A single year of immunotherapy for ragweed hay fever. Immunologic and clinical studies.
mesh_terms: D000485:Allergens; D000906:Antibodies / Q000032:analysis; D002986:Clinical Trials as Topic; D046508:Culture Techniques; D003888:Desensitization, Immunologic; D005500:Follow-Up Studies; D006636:Histamine Release; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D008214:Lymphocytes / Q000276:immunology; D010919:Placebos; D011058:Pollen; D012075:Remission, Spontaneous; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology / Q000517:prevention & control / Q000628:therapy*
chemical_list: D000485:Allergens; D000906:Antibodies; D007074:Immunoglobulin G; D010919:Placebos