1. Department of Internal Medicine, Brookdale University Hospital Medical Center, Brooklyn, NY 11212, USA
2. Faculty of Medicine, Cairo University, Cairo 11591, Egypt
3. Department of Psychiatry, New York University Grossman School of Medicine, New York University Langone Health, New York, NY 10016, USA
4. Department of Psychiatry, New York City Health and Hospitals/Bellevue, New York, NY 10016, USA
5. Section of High-Resolution Brain Positron Emission Tomography Imaging, The Russell H. Morgan Department of Radiology and Radiological Science, Division of Nuclear Medicine and Molecular Imaging, School of Medicine, The Johns Hopkins University, Baltimore, MD 21287, USA