Thrombinlike and fibrinolytic enzymes in the venoms from the Gaboon viper {Bids gabonica), Eastern cottonmouth moccasin (Agkistrodon P. Piscivorus) and Southern copperhead (Agkistrodon C. Contortrix) snakes - Bajwa, S S; Kirakossian, H; Reddy, K N N; Markland , F S (Toxicon, 1982)