Why remove four by chance when one will suffice?
Hansen
N M
NM
Giuliano
A E
AE
D001365:Axilla; D001943:Breast Neoplasms / Q000601:surgery*; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis; D011379:Prognosis