Mo-Kyung Sin1, Vicky Taylor2, Shin-Ping Tu3. 1. Seattle University College of Nursing, 901 12th Ave, P.O. Box 222000, Seattle, WA, 98122-1090, USA. sinm@seattleu.edu. 2. Division of Public Health Sciences, Fred Hutchinson Cancer Research, Seattle, WA, USA. 3. Division of General Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA.