[1] Johns Hopkins Univ, Sch Nursing, 525 N Wolfe St, Baltimore, MD 21205 USA
[2] Univ Washington, Sch Nursing, Dept Child Family & Populat Hlth Nursing, 1959 NE Pacific St, Seattle, WA 98195 USA
[3] One Med Sr, 306 23rd Ave S,Ste 200, Seattle, WA 98144 USA
[4] Univ Washington, Sch Publ Hlth, Dept Hlth Syst & Populat Hlth, 1959 NE Pacific St, Seattle, WA 98195 USA