Houben, P., der van Weijden, T., Sijbrandij, J., Grol, R., & Winkens, R. (2006). Reasons for ordering spinal x-ray investigations: How they influence general practitioners’ management. College of Family Physicians of Canada.

Houben, P.H.H., T. der van Weijden, J. Sijbrandij, R.P.T.M Grol, e R.A Winkens. Reasons for Ordering Spinal X-ray Investigations: How They Influence General Practitioners’ Management. College of Family Physicians of Canada, 2006.

Houben, P.H.H., et al. Reasons for Ordering Spinal X-ray Investigations: How They Influence General Practitioners’ Management. College of Family Physicians of Canada, 2006.