1. Department of Respiratory Therapy, Chang Gung Memorial Hospital, Chiayi, Taiwan.
2. Department of Respiratory Care, Chang Gung University of Science and Technology, Chiayi Campus, Taiwan.
3. Department of Respiratory Therapy, Chang Gung University, Taoyuan, Taiwan.
4. Department of Respiratory Therapy, Seattle Children's Hospital, Seattle, Washington.
5. Department of Internal Medicine, Chang Gung Memorial Hospital, Chiayi, Taiwan.
6. Division of Respiratory Therapy, Georgia State University, Atlanta, Georgia.