[1] Drexel Univ, Dornsife Sch Publ Hlth, Dept Hlth Management & Policy, Philadelphia, PA 19104 USA
[2] Univ Maryland, Sch Publ Hlth, Dept Hlth Policy & Management, College Pk, MD 20742 USA
[3] Univ Calif Los Angeles UCLA, Fielding Sch Publ Hlth, Los Angeles, CA USA
[4] UCLA, Ctr Hlth Policy Res, Los Angeles, CA USA
[5] Univ Puerto Rico, Sch Med, Dept Pediat, Rio Piedras, PR USA
[6] Univ Puerto Rico, Sch Med, Behav Sci Res Inst, Rio Piedras, PR USA
[7] Drexel Univ, Dornsife Sch Publ Hlth, Dept Epidemiol & Biostat, Philadelphia, PA 19104 USA