[1] Johns Hopkins Univ, Sch Nursing, Baltimore, MD 21211 USA
[2] Univ Penn, Sch Nursing, Philadelphia, PA 19104 USA
[3] Univ Virginia, Sch Med, Charlottesville, VA 22908 USA
[4] Univ Virginia Hosp, Charlottesville, VA USA
[5] Johns Hopkins Bayview Med Ctr, Baltimore, MD USA
[6] Univ Missouri, Sch Nursing, Columbia, MO USA
[7] Johns Hopkins Comprehens Canc Ctr, Baltimore, MD USA
[8] Yale Univ, Sch Nursing, New Haven, CT 06536 USA