“…In the 1960's the present name, factor V, was gradually adapted. Factor V has been purified to homogeneity from canine, bovine and human plasma (Nesheim e/ o/., 1979;Esmon 1979;Bolhuis ef a/., 1979;Dahlback, 1980;Kane and Majerus, 1981;Katzmann <?f o/., 1981;Suzuki e/ o/., 1982). The cDNA sequences for human , and recently, bovine factor V have been determined (Kane and Davie, 1986; Kane ef a/., 1987; Jenny e/ a/., 1987, Guinto <?/ a/., 1992) and from this the amino acid sequences could be deduced.…”