Department;
of;
Integrated;
Chinese;
and;
Western;
Medicine,West;
China;
Hospital,;
Sichuan;
University,;
Chengdu;
(610041),China;
Department;
of;
Respiratory;
Medicine,;
the;
First;
People'sHospital;
of;
Chengdu;
City,;
Chengdu;
(610041),;
China;