1 Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Center of Respiratory Medicine of Fujian Province, Quanzhou, 362000, China.
2 Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University, Center of Respiratory Medicine of Fujian Province, Quanzhou, 362000, China. Electronic address: fanjiminfff@126.com.