1. Dr. Gang Xiong, Prof. Kang Yang, Department of Thoracic and Cardiac Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P. R. China
2. Dr. Hong Guo, Dr. Xueqing Xu, Dr. Xiaoya Yang, Prof. Yun Bai, Department of Medical Genetics, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, P. R. China
3. Dr. Xiaodong Ge, Department of Pathology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P. R. China
4. Prof. Yaoguang Jiang, Department of Thoracic Surgery, Daping Hospital, Third Military Medical University, Chongqing 400042, P. R. China