[1] Stanford Univ, Sch Med, Dept Psychiat & Behav Sci, Stanford, CA USA
[2] Stanford Univ, Sch Med, Div Pediat Endocrinol, Dept Pediat, Stanford, CA USA
[3] Valley Childrens Healthcare, Madera, CA USA
[4] Lucile Packard Childrens Hosp Stanford, Palo Alto, CA USA
[5] Stanford Univ, Sch Med, Dept Pediat, Div Pediat Cardiol, Stanford, CA USA
[6] East Carolina Univ, Dept Psychol & Cardiovasc Sci, Greenville, NC USA