1 From the Division of Preventive Medicine (K.R.), Department of Medicine, Brigham and Women's Hospital, Boston, MA; and Department of Neurology (T.R.), University of Miami Miller School of Medicine, FL. krexrode@partners.org.
2 From the Division of Preventive Medicine (K.R.), Department of Medicine, Brigham and Women's Hospital, Boston, MA; and Department of Neurology (T.R.), University of Miami Miller School of Medicine, FL.