1. Intracranial venous thrombosis as a complication of oral contraception;ATKINSON, E.A.; FAIRBURN, B.; HEATHFIELD, K.W.G.;Lancet,1970
2. Agnogenic venous mesenteric thrombosis;BERRY, F.B.; BOUGAS, J.A.;Annals of Surgery,1950
3. Infarction of the mid gut associated with the use of oral contraceptives;BRENNAN, M.F.; CLARK, A.M.; MACBETH, W.A.;New England Journal of Medicine,1968
4. British Medical Journal(1971) Hepatic vein occlusion
5. Mesenteric venous thrombosis associated with oral contraceptives;CIVETTA, J.M.; M, K.O.L.O.D.N.Y.;Gastroenterology,1970