@misc{indiciae87a8eb2f251f, title = {Node negative breast cancer.}, author = {S M O'Reilly and M A Richards}, year = {1990}, doi = {10.1136/bmj.300.6736.1399-c}, url = {https://pubmed.ncbi.nlm.nih.gov/2372594/}, note = {Source identifier: 2372594} }