TY - RPRT TI - Studies on extracellular proteases of Streptococcus sanguis. Purification and characterization of a human IgA1 specific protease. AU - R S Labib AU - N J Calvanico AU - T B Tomasi PY - 1978 DO - 10.1016/0005-2744(78)90145-6 UR - https://pubmed.ncbi.nlm.nih.gov/102357/ ID - 102357 ER -