Shashikumar HB, et al. “The Study of Correlation of Estrogen Receptor, Progesterone Receptor, and HER2 Receptor Status in Breast Cancer and Its Incidence in a Tertiary Center Hospital in South India”. Asian Journal of Medical Sciences, vol. 13, no. 7, July 2022, pp. 87-91, https://nepjol.info/index.php/AJMS/article/view/44536.