I Zuazu-Jausoro, I Sanchez, MC Fernandez, J Corral, R Gonzalez-Conejero, V Vicente. Portal and mesenteric venous thrombosis in a patient heterozygous for the 20210 A allele of the prothrombin gene. Haematologica 1998;83(12):1129-1130; https://doi.org/10.3324/%x.