1. Department of Cardiovascular medicine, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
2. Department of Radiology and Nuclear Medicine, The First Hospital of Hebei Medical University, Shijiazhuang, China
3. Department of Anesthesia, Qingyang People’s Hospital, Qingyang, China
4. Department of Anesthesiology and Surgery, Zhengning County People’s Hospital, Qingyang, China