Department of Pulmonary and Critical Care Medicine The First Hospital of Qinhuangdao Qinhuangdao Hebei 066000 China;
Department of Pulmonary and Critical Care Medicine The First Hospital of Qinhuangdao Qinhuangdao Hebei 066000 China;
Department of Critical Care Medicine The First Hospital of Qinhuangdao Qinhuangdao Hebei 066000 China;
Department of Respiratory Medicine Tianjin Medical University General Hospital Tianjin 300052 China;
Department of Pulmonary and Critical Care Medicine The First Hospital of Qinhuangdao Qinhuangdao Hebei 066000 China;
Department of Pulmonary and Critical Care Medicine The First Hospital of Qinhuangdao Qinhuangdao Hebei 066000 China;