1. Department of Endocrinology; Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing; China
2. Department of Medicine; Beijing Friendship Hospital Affiliated to the Capital Medical University; Beijing; China
3. Department of Anesthesiology; The University of Hong Kong; Hong Kong; China
4. Department of Cardiology; Beijing Chaoyang Hospital Affiliated to Capital Medical University; Beijing; China
5. Shenzhen Futian District Traditional Chinese Medicine Hospital; Shenzhen; China