Institution: | 1. Department of Hepatobiliary Surgery, Kunming Medical College, Kunming, China;2. Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons, Columbia University, New York, NY;3. Department of Environmental Health Sciences, College of Physicians and Surgeons, Columbia University, New York, NY;4. Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY;5. Fax: +212 305 6889. |