Risk factors for breast cancer recurrence in postmenopausal women: a bibliometric study - Hoinoiu, Teodora; Piţ, Daniel; Oprean, Cristina; Hoinoiu, Bogdan; Diaconescu, Andra; Grujic, Ljubisa; Luca, Magda Mihaela; Grujic, Daciana (Frontiers in Oncology, 2025)