[1] George Washington Univ, Sch Nursing, Dept Policy Populat & Syst, Washington, DC 20052 USA
[2] Univ Oklahoma, Hlth Sci Ctr, Stephenson Canc Ctr, TSET Hlth Promot Res Ctr, Oklahoma City, OK USA
[3] Univ Oklahoma, Hlth Sci Ctr, Coll Med, Dept Pediat, Oklahoma City, OK 73190 USA
[4] George Washington Univ, Milken Inst Sch Publ Hlth, Dept Prevent & Community Hlth, Washington, DC USA
[5] George Washington Univ, George Washington Canc Ctr, Washington, DC USA
[6] George Washington Univ, Milken Inst Sch Publ Hlth, Dept Epidemiol, Washington, DC USA