[1] Miriam Hosp, Ctr Behav & Prevent Med, Providence, RI 02906 USA
[2] Brown Univ, Dept Psychiat & Human Behav, Warren Alpert Med Sch, Providence, RI 02912 USA
[3] Temple Univ, Dept Oral Hlth Sci, Kornberg Sch Dent, 3223 N Broad St, Philadelphia, PA 19140 USA
[4] Brown Univ, Dept Behav & Social Sci, Sch Publ Hlth, Providence, RI 02912 USA
[5] Harvard Med Sch, Dept Anesthesia, Brigham & Womens Hosp, Boston, MA 02115 USA
[6] Harvard Med Sch, Dept Med, Beth Israel Deaconess Med Ctr, Boston, MA 02115 USA
[7] Brown Univ, Dept Med, Warren Alpert Med Sch, Providence, RI 02912 USA