Patients
This study was approved by the Research Ethics Committee of Renmin Hospital of Wuhan University with written informed consent obtained from all participants. Between April 2018 and November 2020 at the Department of Gynaecology, Renmin Hospital of Wuhan University, 48 women with stage III-IV endometriosis according to the revised American Fertility Society score (r-AFS) (aged 28-35, mean age=30.3 years) were recruited for analysis.