1. Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's HospitalGuangdong Academy of Medical Sciences P.R. China
2. Department of Cardiac SurgeryUniversity of Michigan Ann Arbor Michigan
3. Department of Pediatric Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's HospitalGuangdong Academy of Medical Sciences P.R. China