Utilization of general practitioners for drug evaluation.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D004358:Drug Therapy; D004917:Erythromycin / Q000627:therapeutic use; D005194:Family Practice; D006801:Humans; D007223:Infant; D008875:Middle Aged; D010404:Penicillin V / Q000627:therapeutic use
D004917:Erythromycin; D010404:Penicillin V