From the Division of Preventive Medicine, Department of Medicine (P.M. Rist, J.E.B., P.M Ridker), Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Department of Neurology (C.S.K.), Emory University, Atlanta, GA; Institute of Public Health (T.K.), Charité-Universitätsmedizin, Berlin, Germany; and Division of Women's Health, Department of Medicine (K.M.R.), Brigham and Women's Hospital, Boston, MA. [Email]
