TY - RPRT TI - Esterase and clotting activity derived from purified prothrombin. AU - W H SEEGERS AU - R H LANDABURU PY - 1957 DO - 10.1152/ajplegacy.1957.191.1.167 UR - https://pubmed.ncbi.nlm.nih.gov/13478708/ ID - 13478708 ER -