[1] Univ Iowa Hosp & Clin, Dept Psychiat, Iowa City, IA 52242 USA
[2] Univ Iowa, Stead Family Dept Pediat, Iowa City, IA 52242 USA
[3] Chinese Univ Hong Kong, Fac Med, Dept Paediat, Hong Kong, Peoples R China
[4] Chinese Univ Hong Kong, Hong Kong Hub Paediat Excellence, Hong Kong, Peoples R China
[5] Hong Kong Childrens Hosp, Dept Paediat & Adolescent Med, Hong Kong, Peoples R China
[6] St Jude Childrens Res Hosp, Dept Epidemiol & Canc Control, 332 N Lauderdale St, Memphis, TN 38105 USA
[7] St Jude Childrens Res Hosp, Dept Psychol, 332 N Lauderdale St, Memphis, TN 38105 USA
[8] Chinese Univ Hong Kong, Fac Med, Sch Pharm, Hong Kong, Peoples R China