Dr. Cai has medical doctor background and he has been a researcher on Bioinformatic area at BWH and VA Boston Health System for a few years. He is now an Associate Bioinformatician in the Division of Rheumatology at BWH and Instructor in Medicine at Harvard Medical School. He is also a member of the VERITY Bioinformatics Resource Core at BWH. Prior to coming to BWH, he was a practicing general surgeon in China. His research focus and expertise is in natural language processing (NLP) and clinical informatics. Incorporating NLP and machine learning techniques, he developed several software and generalized GUI tools for data extraction, patient recruitment, note selection and chart review to perform clinical outcomes research and disease classification.