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Long Q, Zhang T, Xu L, Tang S, Hemminki E.Long Q, et al. Among authors: zhang t.Trop Med Int Health. 2010 Oct;15(10):1210-7. doi: 10.1111/j.1365-3156.2010.02602.x.Trop Med Int Health. 2010.PMID: 20636298Free article.
Long Q, Zhang T, Hemminki E, Tang X, Huang K, Xiao S, Tolhurst R.Long Q, et al. Among authors: zhang t.BMC Health Serv Res. 2010 Nov 1;10:301. doi: 10.1186/1472-6963-10-301.BMC Health Serv Res. 2010.PMID: 21040560Free PMC article.
Hemminki E, Long Q, Zhang WH, Wu Z, Raven J, Tao F, Yan H, Wang Y, Klemetti R, Zhang T, Regushevskaya E, Tang S.Hemminki E, et al. Among authors: zhang t, zhang wh.Matern Child Health J. 2013 Feb;17(2):208-21. doi: 10.1007/s10995-012-0962-6.Matern Child Health J. 2013.PMID: 22359240Clinical Trial.
Zhang T, Tang S, Jun G, Whitehead M.Zhang T, et al.BMC Public Health. 2007 Feb 8;7:19. doi: 10.1186/1471-2458-7-19.BMC Public Health. 2007.PMID: 17288593Free PMC article.
Long Q, Smith H, Zhang T, Tang S, Garner P.Long Q, et al. Among authors: zhang t.BMC Public Health. 2011 May 26;11:393. doi: 10.1186/1471-2458-11-393.BMC Public Health. 2011.PMID: 21615930Free PMC article.Review.
Li T, Lei T, Xie Z, Zhang T.Li T, et al. Among authors: zhang t.BMC Health Serv Res. 2016 Feb 4;16:42. doi: 10.1186/s12913-016-1276-y.BMC Health Serv Res. 2016.PMID: 26846921Free PMC article.