1 Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatric, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
2 Division of Pediatric Nephrology, Department of Pediatric, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
3 Division of Pediatric Allergy, Immunology and Rheumatology, Department of Pediatric, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Division of Pediatric Nephrology, Department of Pediatric, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Department of Medical Laboratory Science and Biotechnology, Fooyin University, Kaohsiung, Taiwan. Electronic address: chysn@ms6.hinet.net.