Yadav, Ritu, et al. “ER, PR, HER2 NEU STATUS AND RELATION TO CLINICOPATHOLOGICAL FACTORS IN BREAST CARCINOMA”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, no. 4, Apr. 2016, pp. 287-90, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/10776.