TY - RPRT TI - [Expression plasmid-host strain using chromosome-plasmid balanced lethal system based on the Escherichia coli thyA]. AU - Wei Huang AU - Cheng Cao AU - Ping Li AU - Hui Zhong AU - Qing-Jun Ma PY - 2003 UR - https://pubmed.ncbi.nlm.nih.gov/15969077/ ID - 15969077 ER -