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Nathwani D, Grimshaw J, Taylor RJ, Ritchie LD, Douglas JG, Smith CC.Nathwani D, et al. Among authors: grimshaw j.Br J Gen Pract. 1994 Apr;44(381):171-4.Br J Gen Pract. 1994.PMID: 8185991Free PMC article.
Campbell NC, Grimshaw JM, Rawles JM, Ritchie LD.Campbell NC, et al. Among authors: grimshaw jm.J Public Health Med. 1996 Dec;18(4):478-80. doi: 10.1093/oxfordjournals.pubmed.a024548.J Public Health Med. 1996.PMID: 9023809
Thomas RE, Grimshaw JM, Mollison J, McClinton S, McIntosh E, Deans H, Repper J.Thomas RE, et al. Among authors: grimshaw jm.Fam Pract. 2003 Dec;20(6):646-54. doi: 10.1093/fampra/cmg605.Fam Pract. 2003.PMID: 14701887Clinical Trial.