1. University of Maryland School of Medicine, Baltimore, MD 21201, USA
2. Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
3. Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
4. Department of Anesthesiology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
5. School of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
6. Department of Dermatology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
7. Department of Family Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
8. Department of Family Medicine, Taipei Veterans General Hospital, Hsinchu Branch, Hsinchu 31064, Taiwan
9. Department of Ophthalmology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
10. Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan