TY  - RPRT
TI  - On diploid cell lines.
AU  - T C Hsu
AU  - J E Cooper
PY  - 1974
DO  - 10.1093/jnci/53.5.1431
UR  - https://pubmed.ncbi.nlm.nih.gov/4214940/
ID  - 4214940
ER  -