[1] Univ Pittsburgh, Dept Hlth Policy & Management, Grad Sch Publ Hlth, 130 DeSoto St,A647, Pittsburgh, PA 15261 USA
[2] Univ Pittsburgh, Ctr Womens Hlth Res & Innovat, Pittsburgh, PA USA
[3] Math Policy Res, Washington, DC USA
[4] Univ Pittsburgh, Sch Med, Div Gen Internal Med, Pittsburgh, PA USA
[5] VA Pittsburgh Healthcare Syst, Ctr Hlth Equ Res & Promot, Pittsburgh, PA USA
[6] Johns Hopkins Univ, Sch Med, Div Gen Internal Med, Baltimore, MD USA
[7] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Populat Family & Reprod Hlth, Baltimore, MD USA