[1] Univ N Carolina, Sch Med, Dept Allied Hlth Sci, Bondurant Hall,CB 7120, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Gillings Sch Global Publ Hlth, Dept Biostat, 170 Rosenau Hall,CB 7400, Chapel Hill, NC 27599 USA
[3] Univ N Carolina, Sch Med, Dept Pediat, 260 MacNider Hall,CB 7220, Chapel Hill, NC 27599 USA
[4] 151 State Univ Dr, Los Angeles, CA 90032 USA
[5] Calif State Univ Los Angeles, Div Special Educ & Counseling, Los Angeles, CA 90032 USA
[6] Campbell Univ, Sch Osteopath Med, Buies Creek, NC USA
[7] Boston Childrens Hosp, Dept Pediat, Boston, MA USA
[8] Univ Colorado, Sch Med, Dept Psychiat, Aurora, CO USA
[9] Rocky Mt Pediat PC, Aurora, CO USA