[1] Univ Calif Los Angeles, Div Dermatol, Dept Med, David Geffen Sch Med, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Div Pediat Crit Care, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Dept Pediat, Div Pediat Hematol & Oncol, Los Angeles, CA 90024 USA