Zawilska , K., W. Krüger, M. Bober, and S. Jurek. “Acquired Haemophilia A in a Patient With Neoplastic Disease”. OncoReview, Vol. 2, no. 4(8), Dec. 2012, pp. 269-73, https://journalsmededu.pl/index.php/OncoReview/article/view/321.