1. From the University Geriatric Unit, Faculty of Medicine and Health Science, University of Auckland (T.T., R.B., J.D.); the Department of Medicine, Faculty of Medicine and Health Science, University of Auckland, and Department of Neurology, Auckland Hospital (N.E.A.); and the Department of Neurosurgery, Auckland Hospital (E.M.), Auckland, New Zealand; and the 4Danish Epidemiology Science Center at the Institute of Preventive Medicine, Copenhagen University Hospital (T.T.), Copenhagen, Denmark.