TY  - RPRT
TI  - [Correlation among N factor, mediastinal node excision and prognosis].
AU  - K Matsumura
AU  - Y Yamaguchi
AU  - N Sato
PY  - 1979
UR  - https://pubmed.ncbi.nlm.nih.gov/469315/
ID  - 469315
ER  -