Bespoke ctDNA Assay for Recurrence and Treatment Response Monitoring in Advanced Epithelial Ovarian Cancer

platinum-based combined chemotherapy or bevacizumab will be used for adjuvant treatment, followed by maintenance therapy with poly adenosine diphosphate-ribose polymerase (PARP) inhibitor, or bevacizumab, or other anti-tumor angiogenesis drugs or immune checkpoint inhibitors