[1] Indiana Univ, Richard M Fairbanks Sch Publ Hlth, Dept Hlth Policy & Management, Indianapolis, IN 46204 USA
[2] Houston Methodist Res Inst, Ctr Outcomes Res, Houston, TX USA
[3] Ohio State Univ, Coll Med, Dept Family Med, 265 Northwood,2231 North High St, Columbus, OH 43201 USA
[4] Univ Alabama Birmingham, Dept Hlth Care Org & Policy, Birmingham, AL USA
[5] Regenstrief Inst Hlth Care, Indianapolis, IN USA
[6] Ohio State Univ, Dept Biomed Informat, Columbus, OH 43201 USA