[1] Barnes Jewish Coll, Goldfarb Sch Nursing, Nursing, St Louis, MO 63110 USA
[2] Washington Univ, Sch Med, Div Palliat Med, St Louis, MO 63110 USA
[3] Univ Utah, Coll Nursing, Salt Lake City, UT USA
[4] Thomas Jefferson Univ, Adult Gerontol Primary Care Nurse Practitioner Pr, Philadelphia, PA USA
[5] Mem Sloan Kettering Canc Ctr, Dept Psychiat & Behav Sci, New York, NY USA