[1] Univ Maryland, Sch Nursing, Baltimore, MD USA
[2] Johns Hopkins Univ, Sch Nursing, Baltimore, MD USA
[3] Johns Hopkins Univ Hosp, Baltimore, MD USA
[4] Univ Texas Hlth Sci Ctr Houston, Sch Publ Hlth, Houston, TX USA
[5] Univ Texas MD Anderson Canc Ctr, Houston, TX USA
[6] Waseda Univ, Tokyo, Japan
[7] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[8] Johns Hopkins Univ, Sch Nursing, 525 North Wolfe St, Baltimore, MD 21205 USA