The problem of low back pain.
D001416:Back Pain / Q000175:diagnosis / Q000628:therapy*; D005081:Exercise Therapy; D006801:Humans; D007405:Intervertebral Disc Displacement; D008161:Lumbosacral Region / Q000000981:diagnostic imaging; D008875:Middle Aged; D011187:Posture; D011859:Radiography; D013131:Spine / Q000473:pathology