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van Eekelen FC, Perquin CW, Hunfeld JA, Hazebroek-Kampschreur AA, van Suijlekom-Smit LW, Koes BW, Passchier J, van der Wouden JC.van Eekelen FC, et al. Among authors: passchier j.Br J Gen Pract. 2002 Mar;52(476):211-3.Br J Gen Pract. 2002.PMID: 12030664Free PMC article.