There are multiple definitions:

1. observation feature statistics(English)

   • DFS
   • Statistics

2. ovarian function suppression(English)

   • a relationship between ovarian function and breast cancer has been recognized. Chemotherapy and endocrine therapies are mainstays of treatment for early and advanced hormone receptor-positive (HR+) breast cancer
   • GnRH, HER2, LH, LHRH, EBCTCG
   • Ovary and uterus, Therapeutic approaches, Chemotherapy, Endocrinology, Hormone
   • https://doi.org…onc.2021.700722