1 Institute for Biological Research, Neuroscience Laboratory, University of Zulia, Maracaibo, Venezuela.
2 The Taub Institute for Research in Alzheimer's Disease and the Aging Brain and the G.H. Sergievsky Center, Columbia University, New York, New York; Department of Epidemiology, School of Public Health, Columbia University, New York, New York.
3 Institute for Biological Research, Neuroscience Laboratory, University of Zulia, Maracaibo, Venezuela; Departments of Neuroscience and Human Genetics, University of Texas Rio Grande Valley School of Medicine, Brownsville, Texas. Electronic address: gladys.maestre@utrgv.edu.
4 Department of Ophthalmology, Columbia University, New York, New York.