TY - RPRT TI - The staphylococcal insertion sequence IS257 is active. AU - C Needham AU - W C Noble AU - K G Dyke PY - 1995 DO - 10.1006/plas.1995.0005 UR - https://pubmed.ncbi.nlm.nih.gov/8825372/ ID - 8825372 ER -