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Cohen AJ, Kessler CM. Acquired inhibitors. Baillieres Clin Haematol 9: 331-354, 1996.","DOI":"10.1016\/S0950-3536(96)80067-9"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Collins P, Macartney N, Davies R, Lees S, Giddings J, Majer R. A population based, unselected, consecutive cohort of patients with acquired haemophilia A. Br J Haematol 124: 86-90, 2004.","DOI":"10.1046\/j.1365-2141.2003.04731.x"},{"key":"3","doi-asserted-by":"publisher","unstructured":"3. Collins PW, Hirsch S, Baglin TP, et al.; UK Haemophilia Centre Doctors&apos; Organisation. Acquired hemophilia A in the United Kingdom: a 2-year national surveillance study by the United Kingdom Haemophilia Centre Doctors&apos; Organisation. Blood 109: 1870-1877, 2007.","DOI":"10.1182\/blood-2006-06-029850"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Knoebl P, Marco P, Baudo F, et al.; the EACH2 Registry Contributors. 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