[1] Calif State Univ Los Angeles, Keck Sch Med, Dept Pediat, Los Angeles, CA 90032 USA
[2] Barbara H Hagan Sch Nursing & Hlth Sci, Molloy Coll, Rockville Ctr, Rockville, NY USA
[3] Univ Toronto, Lawrence E Bloomberg Fac Nursing, Toronto, ON, Canada
[4] Univ Texas, Sch Nursing, Austin, TX USA
[5] Loyola Univ Chicago, Marcella Niehoff Sch Nursing, Ctr Translat Res & Educ, Chicago, IL USA
[6] Childrens Hosp Los Angeles, Los Angeles, CA 90027 USA