“The Effect of Metformin on the Expression of Caspase 3 , 8, 9 and PARP-1 in Human Breast Cancer Cell Line T47D”. Shahroud Journal of Medical Sciences 2, no. 2 (November 1, 2016). Accessed April 19, 2025. https://sjms.shmu.ac.ir/index.php/ijhs/article/view/124.