In a controlled trial training general practitioners and occupational physicians to collaborate did not influence sickleave of patients with low back pain von Faber, E., Bierma-Zeinstra, S.M.A., Burdorf, A., Nauta, A.P., Hulshof, C.T.J., Overzier, P.M., Miedema, H.S., Koes, B.W.

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