Mechanical injury and psychosocial factors in the work place predict the onset of widespread body pain: a two-year prospective study among cohorts of newly employed workers
Harkness, E. F., MacFarlane, G. J., Nahit, E., Silman, A. J., McBeth, J.
Arthritis & Rheumatism, vol. 50, no. 5, pp. 1655-1664