1. Department of Surgery Intensive Care Unit China–Japan Friendship Hospital Beijing China
2. Department of Emergency Medicine China–Japan Friendship Hospital Beijing China
3. Department of Ultrasound Medicine China–Japan Friendship Hospital Beijing China
4. Department of Emergency Medicine, National Center for Children's Health, Beijing Children's Hospital Capital Medical University Beijing China
5. Department of Intensive Care Unit The Sixth Clinical Medical College of Henan University of Traditional Chinese Medicine Zhumadian Henan Province 463000 China