[1] Harvard Med Sch, Brigham & Womens Hosp, Div Pharmacoepidemiol & Pharmacoecon, Dept Med, Boston, MA USA
[2] Harvard Med Sch, Brigham & Womens Hosp, Div Pharmacoepidemiol, Dept Med, Boston, MA USA
[3] Boehringer Ingelheim Int GmbH, Ingelheim, Germany
[4] Lilly Deutschland GmbH, Bad Homburg, Germany
[5] Harvard Med Sch, Massachusetts Gen Hosp, Div Endocrinol, Dept Med,MGH Diabet Ctr, Boston, MA USA