TY - RPRT TI - Proteolytic mutants obtained from Clostridium botulinum type E. AU - A Nakane AU - H Iida PY - 1977 DO - 10.1128/aem.34.1.99-101.1977 UR - https://pubmed.ncbi.nlm.nih.gov/329766/ ID - 329766 ER -