Massive muscle haematoma three months after starting vitamin K antagonist therapy for deep-vein thrombosis in an antithrombin deficient patient: Another case of factor IX propeptide mutation - Jahns, Maximilian; Friess, Dorothea; Biasiutti, Franziska Demarmels; Hovinga, Johanna A. Kremer; Alberio, Lorenzo; Oldenburg, Johannes; Lämmle, Bernhard; Colucci, Giuseppe (Thrombosis and Haemostasis, 2011)