[1] Univ N Carolina, Sch Nursing, Carrington Hall,CB 7460, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Sch Nursing, Family Hlth Div, Carrington Hall,CB 7460, Chapel Hill, NC 27599 USA
[3] Seattle Univ, Coll Nursing, 901 12th Ave, Seattle, WA 98122 USA
[4] Univ N Carolina, Sch Nursing, Adult & Geriatr Hlth Div, Carrington Hall,CB 7460, Chapel Hill, NC 27599 USA
[5] Univ N Carolina, Childrens Hosp, Newborn Crit Care Ctr, 101 Manning Dr, Chapel Hill, NC 27514 USA
[6] WakeMed Phys Practices Pediat, 3024 New Bern Ave, Raleigh, NC 27610 USA