[1] Geisel Sch Med Dartmouth, Dartmouth Hitchcock Norris Cotton Canc Ctr, Lebanon, NH USA
[2] Geisel Sch Med Dartmouth, Dartmouth Inst Hlth Policy & Clin Practice, One Med Ctr Dr, Lebanon, NH 03756 USA
[3] Dana Farber Canc Inst, Div Populat Sci, Boston, MA 02115 USA
[4] Harvard TH Chan Sch Publ Hlth, Dept Social & Behav Sci, Boston, MA USA
[5] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Dept Hlth Behav & Soc, Baltimore, MD USA
[6] Brown Univ, Warren Alpert Med Sch, Providence, RI 02912 USA
[7] Natl Inst Minor Hlth & Hlth Dispar, Div Intramural Res, Bethesda, MD USA