General practitioner clinical trials. New forms of old analgesics.
D000328:Adult; D000368:Aged; D000700:Analgesics / Q000008:administration & dosage*; D001241:Aspirin / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013607:Tablets
D000700:Analgesics; D003692:Delayed-Action Preparations; D013607:Tablets; D001241:Aspirin