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