Section 6 of 8
Ethics declaration
Yi Zhu, Yanqiu Zhang, Chao Huang, Sheng Zhang, Jun Cao, Nicole Miranda, Sarina Zhao, Yan Peng, Chao Yu, Bin Feng, Jieyu Jin, Qingqin Tang, Jiaming Fan, Longwei Qiao, and Yuting Liang · about 1 minutes
This study was reviewed and approved by the Reproductive Medicine Ethics Committee of Suzhou Municipal Hospital (ID: K-2025-200-K01). All procedures of this retrospective cohort study, including data collection, de-identification, and outcome analysis, were conducted in compliance with the Helsinki Declaration. Written informed consent from the (patients/participants or patients/participants legal guardian/next of kin) was not required to participate in this study in accordance with the national legislation and the institutional requirements.