1. Department of Neurosurgery, The Affiliated Huai’an Hospital of Xuzhou Medical College, Huai’an, China
2. Department of Anesthesiology, Huai’an Maternity and Child Healthcare Hospital, Yangzhou University Medical School, Huai’an, China
3. Department of Thoracic Surgery, Huai’an First People's Hospital, Nanjing Medical University, Huai’an, China