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Martin S, Rice N, Smith PC.Martin S, et al.J Health Econ. 2008 Jul;27(4):826-842. doi: 10.1016/j.jhealeco.2007.12.002. Epub 2007 Dec 25.J Health Econ. 2008.PMID: 18261812Free article.
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Dawson D, Jacobs R, Martin S, Smith P.Dawson D, et al. Among authors: martin s.Appl Health Econ Health Policy. 2004;3(4):195-203. doi: 10.2165/00148365-200403040-00003.Appl Health Econ Health Policy. 2004.PMID: 15901194