MA Putri, Agatha, Jayadi Tejo, Wiwiek Probowati, and Jonathan W Siagian. “The Association Between The Patient’s Age Groups With Stage, Grading, and Molecular Subtype of Breast Cancer”. Journal of Medicine and Health 4, no. 2 (August 31, 2022): 123–130. Accessed December 9, 2022. https://journal.maranatha.edu/index.php/jmh/article/view/4554.