Alvin Chao-Yu Chen, MD  Associate professor and chief, Department of Orthopaedic Sports Medicine  Graduated from China Medical University in 1977  Chang Gung Memorial Hospital since 1979  Research interests in orthopedic surgery, sports medicine, and tissue engineering  Current committee member of the Taiwan Shoulder and Elbow Society, Taiwan Arthroscopy and Knee Society, and Taiwan Society For Computer Assisted Orthopedic Surgery  Society president of the Taiwan Society for Surgery of the Hand (2010-2012)