title: How effective is TENS for acute pain?
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000698:Analgesia / Q000379:methods*; D004434:Early Ambulation; D004599:Electric Stimulation Therapy / Q000379:methods*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000627:therapeutic use; D010149:Postoperative Pain / Q000628:therapy*; D011897:Random Allocation
chemical_list: D009020:Morphine