[Referred pain].
D001340:Autonomic Nerve Block; D001416:Back Pain / Q000209:etiology; D005260:Female; D006801:Humans; D007403:Intervertebral Disc / Q000000981:diagnostic imaging / Q000503:physiopathology; D008297:Male; D009420:Nervous System / Q000503:physiopathology; D010146:Pain / Q000503:physiopathology*; D011859:Radiography; D013122:Spinal Diseases / Q000150:complications; D014277:Trigeminal Neuralgia / Q000150:complications; D014911:Whiplash Injuries / Q000150:complications