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Teh RC, Mahajan N, Visvanathan R, Wilson A.Teh RC, et al. Among authors: visvanathan r.Int J Evid Based Healthc. 2015 Dec;13(4):213-23. doi: 10.1097/XEB.0000000000000029.Int J Evid Based Healthc. 2015.PMID: 26630361Review.