Fig. 1From: Impact of adjuvant chemotherapy on T1N0M0 breast cancer patients: a propensity score matching study based on SEER database and external cohortStatistically significant Kaplan–Meier survival curves of the adjuvant chemotherapy and no adjuvant chemotherapy groups according to the grades and molecular subtypes of T1bN0M0 breast cancer patients treated at the Northern Jiangsu People’s Hospital. A T1b Grade II; B: T1b Grade III; C T1b HoR + HER2 + ; D T1b HoR- HER2 + ; E T1b HoR- HER2-. Abbreviations: HoR, hormone receptor; HER2, human epidermal growth factor receptor 2Back to article page