The relationship of pain provocation to lumbar disc deterioration as seen by CT/discography. - Vanharanta,H.; Sachs,B.L.; Spivey,M.A.; Guyer,R.D.; Hochschuler,S.H.; Rashbaum,R.F.; Johnson,R.G.; Ohnmeiss,D.; Mooney,V. (Spine, 1987)