Fig. 1From: Breast cancer heterogeneity and its implication in personalized precision therapyInter- and intratumor heterogeneity of breast cancer. A Intertumoral heterogeneity: a Variation in different breast cancer subtypes among different patients; b Variation in different breast cancer subtypes in patients with primary breast cancer and its metastasis in the same patient. B Intratumor heterogeneity: variation in different cell types within a tumorBack to article page