TY - RPRT TI - Concurrent decrease of enzymic activities concerned with the synthesis of coenzyme B 12 and of propionic acid in propionibacteria. AU - I A Menon AU - D Shemin PY - 1967 DO - 10.1016/0003-9861(67)90080-x UR - https://pubmed.ncbi.nlm.nih.gov/6057100/ ID - 6057100 ER -