[1] Univ Florida, Coll Med, Dept Hlth Outcomes & Biomed Informat, 2004 Mowry Rd,Room 2238, Gainesville, FL 32610 USA
[2] Univ Florida, Coll Med, Dept Pediat, Gainesville, FL 32610 USA
[3] Emory Univ, Rollins Sch Publ Hlth, Atlanta, GA 30322 USA
[4] Avnee Fdn, Gainesville, FL USA
[5] Univ Florida, Inst Child Hlth Policy, 2004 Mowry Rd,Room 2238, Gainesville, FL 32610 USA