TY - RPRT TI - beta-Lactamase activity in human pus. AU - R E Bryant AU - A L Rashad AU - J A Mazza AU - D Hammond PY - 1980 DO - 10.1093/infdis/142.4.594 UR - https://pubmed.ncbi.nlm.nih.gov/6969281/ ID - 6969281 ER -