1 Department of Radiology, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, People’s Republic of China
2 Department of Pathology, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, People’s Republic of China
3 Department of Pulmonary and Critical Care Medicine, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, People’s Republic of China. tuchangli2008@126.com