https://www.cochrane.org/fr/CD013658/BREASTCA_chirurgie-oncoplastique-conservatrice-du-sein-chez-les-femmes-atteintes-dun-cancer-du-sein-dun 2021 United Kingdom review of literature french abstract Breast cancer mastectomy, segmental Surgery neoplasm, malignant breast neoplasms Preserved food Breast-Conserving surgery women female malignant neoplasm breast female disease female mammary gland operative procedure, nos breast cancer