[1] Univ Calif San Francisco, Robert Wood Johnson Hlth & Soc Scholars Program, San Francisco, CA 94118 USA
[2] Mem Sloan Kettering Canc Ctr, Dept Psychiat & Behav Sci, New York, NY 10021 USA
[3] Fred Hutchinson Canc Res Ctr, Program Canc Prevent, Seattle, WA 98104 USA
[4] Kaiser Permanente No Calif, Div Res, Oakland, CA USA
[5] Univ Calif San Francisco, Dept Dermatol, San Francisco, CA 94143 USA
[6] Oregon Hlth & Sci Univ, Sch Nursing, Portland, OR 97201 USA
[7] Oregon Hlth & Sci Univ, Sch Med, Dept Publ Hlth & Prevent Med, Portland, OR 97201 USA
[8] Boston Univ, Dept Social & Behav Sci, Boston, MA 02215 USA