1. MicroBase Technology Corp., Taoyuan, Taiwan.
2. Department of Respiratory Therapy, Chang Gung University, Taoyuan, Taiwan.
3. Department of Pulmonary and Critical Care, Chang Gung Memorial Hospital-Linkou Branch, Taoyuan, Taiwan.
4. Department of Thoracic Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
5. Department of Respiratory Care, Chang Gung University of Technology and Science, Chiayi, Taiwan.