Pharmacotherapy for nonmalignant pain.
Barkin
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RL
D000701:Analgesics, Opioid / Q000627:therapeutic use*; D002908:Chronic Disease; D016861:Cyclooxygenase Inhibitors / Q000627:therapeutic use*; D006801:Humans; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D014147:Tramadol / Q000627:therapeutic use*; D014481:United States
D000701:Analgesics, Opioid; D016861:Cyclooxygenase Inhibitors; D014147:Tramadol