Ravi, Ramchandani, et al. “FREQUENCY OF HORMONE RECEPTORS AND HER-2 NEU RECEPTOR POSITIVITY IN DIFFERENT HISTOLOGY IN BREAST CANCER PATIENTS”. Journal of Ayub Medical College Abbottabad, vol. 32, no. 3, June 2020, pp. 323-6, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/6557.