[1] Univ Penn, Sch Nursing, Philadelphia, PA 19104 USA
[2] Univ Penn, Ctr Weight & Eating Disorders, Perelman Sch Med, Philadelphia, PA 19104 USA
[3] Yale Univ, Sch Med, Dept Psychiat, New Haven, CT USA
[4] Yale Sch Publ Hlth, New Haven, CT USA
[5] Yale Univ, Dept Psychol, New Haven, CT USA
[6] Natl Ctr Addict & Subst Abuse, New Haven, CT USA
[7] Yale Stress Ctr, New Haven, CT USA