PT Journal AU Rossignol, M TI Directionality in the association between lumbar degenerative changes and back pain. SO Scandinavian Journal of Work, Environment & Health PD 8VL PY 1990 BP 293 EP 293 IS 4 DI 10.5271/sjweh.1792 WP https://www.sjweh.fi/show_abstract.php?abstract_id=1792 SN 0355-3140 ER