Lucia Shinta Ratnaningtyas, Prof.Dr. Tri Murti Andayani, Sp.FRS, Dr. apt. Dwi Endarti, S.F., M.Sc. COST EFFECTIVENESS ANALYSIS OF LETROZOLE VERSUS TAMOXIFEN IN EARLY-STAGE BREAST CANCER FOR POSTMENOPAUSAL WOMEN: SYSTEMATIC REVIEW. JHEPR [Internet]. 2026 Apr. 2 [cited 2026 Apr. 4];4(1). Available from: https://ejournal.ump.ac.id/jhepr/article/view/301