[1] Stanford Univ, Dept Pediat, Stanford, CA 94305 USA
[2] Lucile Packard Childrens Hosp, Dept Clin Informat, Palo Alto, CA USA
[3] Santa Clara Valley Med Ctr, Santa Clara Cty Juvenile Custody Inst, San Jose, CA 95128 USA
[4] Kaiser Permanente, Dept Pediat, Denver, CO USA
[5] Kaiser Permanente, Hlth Connect Dept, Denver, CO USA
[6] Rady Childrens Hosp, Dept Informat Technol, San Diego, CA USA
[7] Univ Calif San Diego, Dept Pediat, San Diego, CA 92103 USA