摘要
aDepartment of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, China bKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education c Department of Anesthesiology, West China Hospital, Sichuan university, Chengdu, Sichuan, China d Department of Anesthesiology, Chengdu Hi-Tech Zone Hospital for Women and Children, Chengdu, China *Corresponding author. Address: Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education; Department of Anesthesiology, Chengdu Hi-Tech Zone Hospital for Women and Children, Chengdu, China. E-mail address: [email protected] (X. Jiang). Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article. Supplemental Digital Content is available for this article. Direct URL citations are provided in the HTML and PDF versions of this article on the journal's website,www.journalsurgery.net. This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.