[1] Univ North Carolina Chapel Hill, Div Practice Adv & Clin Educ, Eshelman Sch Pharm, Chapel Hill, NC 27514 USA
[2] Harvard TH Chan Sch Publ Hlth, Dept Global Hlth & Populat, Boston, MA USA
[3] MDRC, New York, NY USA
[4] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA
[5] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Populat Family & Reprod Hlth, Baltimore, MD USA
[6] Merck & Co Inc, Ctr Observat & Real World Evidence, West Point, PA USA
[7] Merck & Co Inc, Ctr Observat & Real World Evidence, Lebanon, NH USA