[1] Texas A&M Univ, Coll Educ & Human Dev, Transdisciplinary Ctr Hlth Equ Res, Dept Hlth & ICinesiol, Gilchrist Bldg,4243 TAMU, College Stn, TX 77843 USA
[2] Univ Florida, Coll Med, Inst Child Hlth Policy, Dept Hlth Outcomes & Biomed Informat, Gainesville, FL USA
[3] Univ Connecticut, Coll Liberal Arts & Sci, Dept Human Dev & Family Sci, Storrs, CT USA
[4] Univ North Texas, Hlth Sci Ctr, Sch Publ Hlth, Ft Worth, TX USA