Assessing safety of opioids for chronic pain.
Scholz
M J
MJ
D001416:Back Pain / Q000188:drug therapy*; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D009294:Narcotics / Q000009:adverse effects*; D009730:Nursing Assessment
D009294:Narcotics