TY  - RPRT
TI  - Prognostic grouping: the next step in tumor classification.
AU  - P Hermanek
AU  - R V Hutter
AU  - L H Sobin
PY  - 1990
DO  - 10.1007/bf01613004
UR  - https://pubmed.ncbi.nlm.nih.gov/2229143/
ID  - 2229143
ER  -