TY  - RPRT
TI  - A novel xylB-based positive selection vector.
AU  - P E Stevis
AU  - N W Ho
PY  - 1988
DO  - 10.1016/0147-619x(88)90011-x
UR  - https://pubmed.ncbi.nlm.nih.gov/2853882/
ID  - 2853882
ER  -