#MetaplasticBreastCancer

N=707 N+ (regional lymph node metastasis) cases
SEER database 2000-2015
603 primary
104 secondary

Chemotherapy + radiotherapy
⬇️breast cancer-specific mortality HR=0.71
⬇️non-breast cancer-specific mortality HR=0.32

#FrontOncology 2021
www.frontiersin.org/journals/onc...