1. Department of Intensive Care Medicine Chi Mei Medical Center Tainan Taiwan
2. Section of Respiratory Care, Department of Internal Medicine Chi‐Mei Medical Center Tainan Taiwan
3. Department of Physical Medicine and Rehabilitation Chi Mei Medical Center Chiali Taiwan
4. Department of Physical Medicine and Rehabilitation Chung Shan Medical University Taichung Taiwan
5. School of Medicine Chung Shan Medical University Taichung Taiwan