[1] Univ Florida, Dept Pediat, 1600 Archer Rd,POB 100296, Gainesville, FL 32610 USA
[2] Univ Florida, Emerging Pathogens Inst, 2055 Mowry Rd,POB 100009, Gainesville, FL 32610 USA
[3] Univ Florida, Dept Hlth Outcomes & Biomed Informat, 2044 Mowry Rd,POB 100177, Gainesville, FL 32610 USA
[4] Univ Florida, Coll Med, POB 100215, Gainesville, FL 32610 USA