1. Department of Medical Education and Family Medicine; National Taiwan University Hospital; Taipei Taiwan
2. School of Medicine; Tzu Chi University; Hualien Taiwan
3. Department of Dermatology; Buddhist Tzu Chi General Hospital; Hualien Taiwan
4. Department of Neurology; Chung Shan Medical University Hospital; Taichung Taiwan
5. Department of Dermatology; Chung Shan Medical University Hospital; Taichung Taiwan
6. Institute of Medicine; Chung Shan Medical University; Taichung Taiwan