[1] Univ Penn, Sch Nursing, Dept Family & Community Hlth, 418 Curie Blvd,218L E, Philadelphia, PA 19104 USA
[2] Univ Penn, Eidos Ctr, Philadelphia, PA 19104 USA
[3] Duke Sch Nursing, 307 Trent Dr, Durham, NC 27710 USA
[4] Duke Univ, Duke Global Hlth Inst, Durham, NC USA
[5] Duke Univ, Duke Global Mental Hlth Program, Durham, NC USA
[6] Brown Univ, Dept Neurol, 69 Brown St,Box 9734, Providence, RI 02912 USA
[7] Univ Penn, Sch Nursing, 418 Curie Blvd,231L, Philadelphia, PA 19104 USA