“Ribociclib Plus Letrozole in Patients With Hormone Receptor‐positive, HER2‐negative Advanced Breast Cancer With No Prior Endocrine Therapy: Subgroup Analysis from the Phase 3b CompLEEment‐1 Trial: Subgroup Analysis of the CompLEEment‐1 Trial”. Radiology and Oncology 56, no. 2 (July 3, 2022): 238–247. Accessed September 21, 2026. https://radioloncol.com/index.php/ro/article/view/3866.