[1] Univ Pittsburgh, Hlth Policy Inst, 3550 Terrace St,Scaife Hall,Suite S311, Pittsburgh, PA 15261 USA
[2] Univ Utah, Sch Med, Dept Gen Internal Med, Salt Lake City, UT USA
[3] Univ Pittsburgh, Med Ctr, Wolff Ctr, Pittsburgh, PA USA
[4] Univ Pittsburgh, Med Ctr, Womens Telehlth Serv, Pittsburgh, PA USA
[5] Univ Pittsburgh, Sch Med, Dept Obstet Gynecol & Reprod Sci, Pittsburgh, PA USA