[1] Boston Univ, Sch Med, Dept Med, Boston, MA USA
[2] Boston Univ, Sch Med, Pulm Ctr, Boston, MA USA
[3] Boston Univ, Sch Med, Sect Endocrinol Diabet Nutr & Weight Management, Boston, MA USA
[4] Vet Affairs Bedford Healthcare Syst, Ctr Healthcare Org & Implementat Res, Bedford, MA USA
[5] Brown Univ, Dept Psychiat & Human Behav, Providence, RI USA
[6] Vet Affairs Boston Healthcare Syst, Ctr Healthcare Org & Implementat Res, Boston, MA USA