1. Section of Neonatology, Department of Pediatrics Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine Kaohsiung City Taiwan
2. Section of Neonatology, Department of Pediatrics Chiayi Chang Gung Memorial Hospital Chiayi Taiwan
3. Department of Respiratory Care Kaohsiung Chang Gung Memorial Hospital Kaohsiung City Taiwan
4. Chang Gung University of Science and Technology Chiayi Taiwan