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Ghaffar A, Tran N, Langlois E, Shroff Z, Javadi D.Ghaffar A, et al.Public Health Res Pract. 2017 Feb 15;27(1):2711703. doi: 10.17061/phrp2711703.Public Health Res Pract. 2017.PMID: 28243669Free article.
Grépin KA, Pinkstaff CB, Shroff ZC, Ghaffar A.Grépin KA, et al. Among authors: shroff zc.Health Res Policy Syst. 2017 Aug 31;15(1):68. doi: 10.1186/s12961-017-0224-6.Health Res Policy Syst. 2017.PMID: 28854946Free PMC article.