TY - RPRT TI - Test for beta-lactamase production. AU - M J Weinbren AU - R M Perinpanayagam PY - 1985 DO - 10.1016/s0140-6736(85)90044-3 UR - https://pubmed.ncbi.nlm.nih.gov/2863667/ ID - 2863667 ER -