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Gao Y, Nocon RS, Gunter KE, Sharma R, Ngo-Metzger Q, Casalino LP, Chin MH.Gao Y, et al. Among authors: gunter ke.J Gen Intern Med. 2016 Sep;31(9):1041-51. doi: 10.1007/s11606-016-3729-8. Epub 2016 May 23.J Gen Intern Med. 2016.PMID: 27216480Free PMC article.