[1] Loyola Univ Chicago, Marcella Niehoff Sch Nursing, Maywood, IL 60153 USA
[2] Univ Wisconsin Milwaukee, Dept Nursing Res, Childrens Hosp Wisconsin, Milwaukee, WI USA
[3] Univ Wisconsin Milwaukee, Self Management Sci Ctr, Coll Nursing, Milwaukee, WI USA
[4] Univ North Dakota, Coll Nursing & Profess Disciplines, Grand Forks, ND USA
[5] Seattle Childrens Hosp, Dept Pediat, Div Dev Med, Seattle, WA USA
[6] Univ Washington, Sch Med, Seattle, WA USA