VERMA, VISHAL, et al. “PROFILE OF SURROGATE MARKERS OF MOLECULAR SUBTYPES USING THE EXPRESSION PATTERN OF ER, PR, AND HER2 NEU RECEPTORS IN OPERABLE BREAST CANCER”. Asian Journal of Pharmaceutical and Clinical Research, vol. 14, no. 9, Sept. 2021, pp. 149-52, doi:10.22159/ajpcr.2021.v14i9.42526.