Josephine Lok is an pediatric critical care physician at MassGeneral for Children.  She attended Harvard-Radcliffe College in Cambridge, MA where she obtained a B.A. in Biology.  She obtained her medical degree from the Albert Einstein College of Medicine in Bronx, New York, and completed residency in Pediatrics at the Floating Hospital for Children/Tufts-New England Medical Center,  Boston, MA.  After completing residency, she practiced primary care Pediatrics at the Apopka Family Health Center in Florida as part of the National Health Service Corps, then went on to Pediatric Critical Care Medicine fellowship at Johns Hopkins Hospital. During the fellowship, she became interested in Neuroscience research and trained in the laboratory of Dr. Lee Martin.   After completing training in Pediatric Critical Care, she joined the Pediatric Critical Care faculty at Boston Medical Center for two years, then the Pediatric Critical Care division at  Mass General Hospital for Children, where she continues her clinical practice as well as research into the pathophysiology of brain injury.   She is also involved in resident education, and co-directs the PICU simulation-based team training program with weekly sessions involving the multidisciplinary team of nurses, pharmacists, physicians, and respiratory therapists.