G Zadra, R Asselta, M Malcovati, E Santagostino, F Peyvandi, PM Mannucci, ML Tenchini, and S Duga. 2004. “Molecular Genetic Analysis of Severe Coagulation Factor XI Deficiency in Six Italian Patients”. Haematologica 89 (11). Pavia, Italy, 1332-40. https://doi.org/10.3324/%x.