JC Souto, J Mateo, JM Soria, D Llobet, I Coll, M Borrell, J Fontcuberta. Homozygotes for prothrombin gene 20210 A allele in a thrombophilic family without clinical manifestations of venous thromboembolism. Haematologica 1999;84(7):627-632; https://doi.org/10.3324/%x.