1. From the Department of Neurology, Baylor College of Medicine, Houston, TX (S.B.M., S.S., C.P.V.R., E.M.B., J.I.S.); Division of Management, Policy and Community Health, University of Texas School of Public Health, Houston, TX (S.K.); and Department of Hematology and Oncology, Montefiore Medical Center, Bronx, NY (A.S.).