[1] CHOC Childrens, Div Pediat Urol, Orange, CA USA
[2] Univ Calif Irvine, Dept Urol, Irvine, CA USA
[3] Univ Calif Irvine, Sch Med, Ctr Stress & Hlth, Suite 940,505 S Main St, Irvine, CA 92868 USA
[4] Univ Calif Irvine, Sue & Bill Gross Sch Nursing, Irvine, CA USA
[5] Childrens Hosp Orange Cty, Dept Pediat Psychol, Orange, CA 92668 USA
[6] Univ Calif Irvine, Dept Anesthesiol & Perioperat Care, Irvine, CA USA
[7] Yale Univ, Yale Child Study Ctr, New Haven, CT USA
[8] Univ Calif Irvine, Hlth Policy Res Inst, Irvine, CA USA
[9] CHOC Childrens, Dept Pediat, Orange, CA USA