TY  - RPRT
TI  - Node negative breast cancer.
AU  - S M O'Reilly
AU  - M A Richards
PY  - 1990
DO  - 10.1136/bmj.300.6721.346
UR  - https://pubmed.ncbi.nlm.nih.gov/2106982/
ID  - 2106982
ER  -