The Department of Respiratory Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, China;
The Department of Cardiothoracic Surgery, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, China;
The Department of Respiratory Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, China;
The Department of Respiratory Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, China;
The Department of Respiratory Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, China;