Van Metre, T E A controlled study of the effectiveness of the Rinkel method of immunotherapy for ragweed pollen hay fever. [electronic resource] - The Journal of allergy and clinical immunology Apr 1980 - 288-97 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0091-6749 Standard No.: 10.1016/0091-6749(80)90158-x doi Subjects--Topical Terms: AdolescentAdultClinical Trials as TopicDouble-Blind MethodEvaluation Studies as TopicHumansImmunotherapy--methodsMiddle AgedPlacebosPollenRhinitis, Allergic, Seasonal--therapy