1. Tzu Chi Stem Cells Center, Buddhist Tzu Chi General Hospital, Hualien, Taiwan, Republic of China.
2. Division of Colon and Rectal Surgery, Department of Surgery, Tri-Service General Hospital, Taipei, Taiwan, Republic of China.
3. Department of Ophthalmology, Mackay Memorial Hospital, Hsinchu, Taiwan, Republic of China.
4. Division of Colon and Rectum Surgery, Department of Surgery, Taiwan Adventist Hospital, Taipei, Taiwan, Republic of China.
5. Department of Research, Buddhist Tzu Chi General Hospital, Taichung Branch, Taiwan, Republic of China.
6. Institute of Medical Sciences, Buddhist Tzu Chi University, Hualien, Taiwan, Republic of China.
7. Department of Medical Research, Buddhist Tzu Chi General Hospital, Hualien, Taiwan, Republic of China.