TY - RPRT TI - Molecular evolution by staggered extension process (StEP) in vitro recombination. AU - H Zhao AU - L Giver AU - Z Shao AU - J A Affholter AU - F H Arnold PY - 1998 DO - 10.1038/nbt0398-258 UR - https://pubmed.ncbi.nlm.nih.gov/9528005/ ID - 9528005 ER -