[1] Univ Maryland, Sch Social Work, 525 W Redwood St, Baltimore, MD 21201 USA
[2] Univ Maryland, Sch Med, Dept Epidemiol & Publ Hlth, Baltimore, MD 21201 USA
[3] Univ Kentucky, Coll Med, Ctr Hlth Serv Res, Lexington, KY USA
[4] Tufts Univ, Sch Med, Dept Publ Hlth & Community Med, Boston, MA 02111 USA
[5] Univ Maryland, Sch Nursing, Baltimore, MD 21201 USA
[6] Univ Kentucky, Coll Publ Hlth, Kentucky Injury Prevent & Res Ctr, Lexington, KY USA
[7] Univ Maryland, Hlth Sci & Human Serv Lib, Baltimore, MD 21201 USA