Department of Respiratory Medicine,Shandong Qianfoshan Hospital,Shandong University,Jinan,Shandong 250014,China;
Department of Respiratory Medicine,Shandong Qianfoshan Hospital,Shandong University,Jinan,Shandong 250014,China;
Department of Respiratory Medicine,Shandong Qianfoshan Hospital,Shandong University,Jinan,Shandong 250014,China;
Department of Pathology,Shandong Provincial Hospital Affiliated to Shandong University,Jinan,Shandong 250021,China;