TY  - RPRT
TI  - Nucleotide polymorphism in colicin E2 gene clusters: evidence for nonneutral evolution.
AU  - Y Tan
AU  - M A Riley
PY  - 1997
DO  - 10.1093/oxfordjournals.molbev.a025806
UR  - https://pubmed.ncbi.nlm.nih.gov/9190068/
ID  - 9190068
ER  -