1. Department of Respiratory and Critical Care Medicine, Ningbo First Hospital, 59 Liuting Road, Ningbo, China
2. Department of Ultrasound, Ningbo First Hospital, 59 Liuting Road, Ningbo, China
3. Department of Clinical Medicine, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, China
4. Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
5. Department of Traditional Medicine, Ningbo First Hospital, 59 Liuting Road, Ningbo, China