[1] Univ Maryland, Sch Social Work, 525 West Redwood St, Baltimore, MD 21201 USA
[2] Florida State Univ, Coll Social Work, Tallahassee, FL 32306 USA
[3] Univ Southern Calif, Dept Nursing, Los Angeles, CA USA
[4] Univ Maryland, Sch Med, Div Pediat Pulm & Allergy, Baltimore, MD 21201 USA
[5] Johns Hopkins Univ, Sch Med, Div Gen Pediat & Adolescent Med, Baltimore, MD USA