Ragweed pollinosis. Opsiphylactic treatment of inhalant allergy. XXI. A study of 29,770 patient-years of symptoms of ragweed pollinosis and 4400 patient-years of injections.
D031164:Ambrosia; D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D007267:Injections; D006255:Rhinitis, Allergic, Seasonal / Q000706:statistics & numerical data*
HAY FEVER/statistics