[1] Red Cross Hosp Yulin City, Dept Pulm & Crit Care Med, Yulin 537000, Guangxi, Peoples R China
[2] Red Cross Hosp Yulin City, Dept Cardiothorac Surg, Yulin 537000, Guangxi, Peoples R China
[3] Red Cross Hosp Yulin City, Dept Pulm & Crit Care Med, 1 Jinwang Rd, Yulin 537000, Guangxi, Peoples R China