[1] Florida Atlantic Univ, Christine E Lynn Coll Nursing, Boca Raton, FL 33431 USA
[2] Johns Hopkins Univ, Sch Nursing, Baltimore, MD USA
[3] Barnes Jewish Coll, Goldfarb Sch Nursing, St Louis, MO USA
[4] Johns Hopkins Univ, Sch Med, Johns Hopkins Med, Baltimore, MD USA
[5] Johns Hopkins Univ, Sch Med, Berman Inst Bioeth, Baltimore, MD USA