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Smith C, Ngo TD, Gold J, Edwards P, Vannak U, Sokhey L, Machiyama K, Slaymaker E, Warnock R, McCarthy O, Free C.Smith C, et al. Among authors: ngo td.Bull World Health Organ. 2015 Dec 1;93(12):842-50A. doi: 10.2471/BLT.15.160267. Epub 2015 Oct 15.Bull World Health Organ. 2015.PMID: 26668436Free PMC article.Clinical Trial.
Smith C, Vannak U, Sokhey L, Ngo TD, Gold J, Free C.Smith C, et al. Among authors: ngo td.Reprod Health. 2016 Jan 5;13:1. doi: 10.1186/s12978-015-0112-x.Reprod Health. 2016.PMID: 26728505Free PMC article.
Ngo TD, Park MH, Shakur H, Free C.Ngo TD, et al.Bull World Health Organ. 2011 May 1;89(5):360-70. doi: 10.2471/BLT.10.084046. Epub 2011 Mar 4.Bull World Health Organ. 2011.PMID: 21556304Free PMC article.Review.