1 Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
2 Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
3 Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Surgery, School of Medical School, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
4 Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. Electronic address: yljane.chen@gmail.com.