[1] San Francisco VA Med Ctr, Dept Qual Management, San Francisco, CA USA
[2] Univ Michigan, Sch Nursing, Ann Arbor, MI 48109 USA
[3] Univ Michigan Hlth, Metro Hlth, Ann Arbor, MI USA
[4] Brigham & Womens Hosp, Med Surg Intens Care Unit, 75 Francis St, Boston, MA 02115 USA
[5] Sacred Heart Univ, Davis & Henley Coll Nursing, Fairfield, CT USA