1 Congenital Structural Heart Disease Center, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
2 Department of Pediatric Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
3 Congenital Structural Heart Disease Center, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. Electronic address: kenpenweng@yahoo.com.tw.