Back pain may be a state of mind.
McBride
D L
DL
D000223:Adaptation, Psychological / Q000502:physiology; D006801:Humans; D007403:Intervertebral Disc / Q000293:injuries; D017116:Low Back Pain / Q000209:etiology / Q000523:psychology*; D013315:Stress, Psychological / Q000523:psychology