Comparison of group progressive-relaxation training and cognitive-behavioral group therapy for chronic low back pain.
D000328:Adult; D001416:Back Pain / Q000628:therapy*; D001521:Behavior Therapy / Q000379:methods*; D002908:Chronic Disease; D003071:Cognition; D005260:Female; D006801:Humans; D008875:Middle Aged; D009119:Muscle Contraction; D009126:Muscle Relaxation