Pollen hyposensitization: interval between maintenance injections.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003888:Desensitization, Immunologic; D005260:Female; D006801:Humans; D007267:Injections; D008297:Male; D006255:Rhinitis, Allergic, Seasonal / Q000628:therapy*