1. Department of Pulmonary and Critical Care Medicine, The Affiliated Hospital of Medical School of Ningbo University, 247 Renmin Road, Ningbo, Zhejiang 315020, China
2. Department of Microbiology, The Affiliated Hospital of Medical School of Ningbo University, 247 Renmin Road, Ningbo, Zhejiang 315020, China
3. Department of Cell, Clinicopathological Diagnosis Center of Ningbo, 685 Huancheng North Road, Ningbo, Zhejiang 315211, China