Kaisorn Chaichana1, Tatianna Larman2, Roberto Salvatori3. 1. Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA. 2. Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA. 3. Division of Endocrinology, Diabetes, & Metabolism, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA. salvator@jhmi.edu.