1. Human Molecular Genetics Lab, Department of Biological Science, Faculty of Basic and Applied Sciences, International Islamic University, Islamabad 44000, Pakistan
2. Center for Statistical Genetics, Gertrude H. Sergievsky Center, Department of Neurology, Columbia University Medical Center, New York 10032, USA
3. Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA
4. Taub Institute for Alzheimer’s Disease and the Aging Brain, and the Department of Neurology, Columbia University Medical Center, New York, 10032 NY, USA