1. Division of Chest Medicine, Department of Internal Medicine; Changhua Christian Hospital; Changhua Taiwan
2. Department of Radiology; Changhua Christian Hospital; Changhua Taiwan
3. Department of Respiratory Care; College of Health Sciences; Chang Jung Christian University; Tainan Taiwan
4. School of Medicine; Chung Shan Medical University; Taichung Taiwan
5. Division of Nephrology; Department of Internal Medicine; Saint Mary's Hospital Luodong, and Saint Mary's Medicine, Nursing and Management College; Yilan Taiwan