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Tengblad A, Grodzinsky E, Lindström K, Mölstad S, Borgquist L, Ostgren CJ.Tengblad A, et al. Among authors: ostgren cj.Scand J Prim Health Care. 2007 Sep;25(3):140-6. doi: 10.1080/02813430701267413.Scand J Prim Health Care. 2007.PMID: 17846931Free PMC article.