1. Department of Respiratory Therapy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City, Taiwan
2. Department of Computer Science and Information Engineering, National Taipei University, New Taipei City, Taiwan
3. Institute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, Tainan City, Taiwan
4. Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City, Taiwan