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Lin M, Chen Y, Sigal RJ.Lin M, et al. Among authors: sigal rj.Neuroepidemiology. 2007;28(1):46-9. doi: 10.1159/000097856.Neuroepidemiology. 2007.PMID: 17164570
Plotnikoff RC, Courneya KS, Sigal RJ, Johnson JA, Birkett N, Lau D, Raine K, Johnson ST, Karunamuni N.Plotnikoff RC, et al. Among authors: sigal rj.Trials. 2010 Jan 12;11:4. doi: 10.1186/1745-6215-11-4.Trials. 2010.PMID: 20067626Free PMC article.Clinical Trial.