Leiden factor V mutation in four patients with small bowel infarctions - Heresbach, D; Pagenault, M; Gueret, P; Crenn, P; Heresbach-Le Berre, N; Malledant, Y; Fauchet, R; Horellou, MH; Silver, J; Messing, B; Bretagne, JF (Gastroenterol, 1997)