1. Department of Emergency Medicine, Luoding People’s Hospital, Yunfu
2. College of Continuing Education, Guangdong Medical University, Zhanjiang
3. Department of Critical Care Medicine
4. Department of Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou
5. Department of Endocrinology, Binhaiwan Central Hospital of Dongguan, Dongguan Hospital Affiliated to Medical College of Jinan University, Dongguan, China