Cohort Profile：The Shandong Adenomyosis Cohort of Population Undergoing Reproductive Technology (SAart)

Treatment options for ovarian stimulation include long-acting and antagonist regimens and other ovulation induction regimens. Options for frozen embryo transfer include natural protocols, mild ovarian stimulation regimens, hormone replacement therapy (HRT) regimens, and down-regulated combined HRT regimens. The treatment regimen is refined in the above protocol. The treatment of patients follows the principles of real-world clinical practice.