1Department of Respiratory and Critical Care Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China; 2Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine,…

1Department of Respiratory and Critical Care Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China; 2Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine,…