TY  - RPRT
TI  - A lymphocyte-stimulating factor produced in vitro.
AU  - J Gordon
AU  - L D MacLean
PY  - 1965
DO  - 10.1038/208795a0
UR  - https://pubmed.ncbi.nlm.nih.gov/4223737/
ID  - 4223737
ER  -