1. From the Department of Neurology (A.S., S.L.), Section on Statistical Planning and Analysis, UT Southwestern Medical Center, Dallas, TX; College of Pharmacy (K.K.), Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada; Department of Medical Epidemiology and Biostatistics (K.K.), Karolinska Institutet, Sweden; Department of Neurology (K.C.F.), Johns Hopkins School of Medicine, Baltimore, MD; and Departments of Internal Medicine and Community Health Sciences (R.A.M.), Max Rady...