TY  - RPRT
TI  - Cancer research: a forward drift.
AU  - T Crawford
AU  - N H Kemp
PY  - 1968
DO  - 10.1016/s0140-6736(68)90554-0
UR  - https://pubmed.ncbi.nlm.nih.gov/4173757/
ID  - 4173757
ER  -