RESEARCH ARTICLE Tongyin Zhang, Department of Anesthesiology, Nanshi Hospital Affiliated to Henan University, Nanyang, China Search for more papers by this author Botao Zhou, Department of Neurosurgery, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China Search for more papers by this author Junyi Sun, Department of Anesthesiology, Nanshi Hospital Affiliated to Henan University, Nanyang, China Search for more papers by this author Jiangling Song, Department of...