title: Clinical and statistical methodology for cooperative clinical assays of analgesics.
mesh_terms: D000328:Adult; D000700:Analgesics / Q000009:adverse effects / Q000592:standards*; D000704:Analysis of Variance; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D008722:Methods; D008875:Middle Aged; D009020:Morphine / Q000592:standards*; D011182:Postoperative Care; D013223:Statistics as Topic; D014481:United States; D014493:United States Department of Veterans Affairs
chemical_list: D000700:Analgesics; D009020:Morphine