Acquired hemophilia A successfully treated with immunosuppressive therapy and plasma exchange - Nishiwaki, Kaichi; Katayama, Toshio; Maruyama, Dai; Kobayashi, Masayuki; Hagino, Tsuyoshi; Masuoka, Shuichi; Yokoyama, Hiroki; Sano, Koji (Nihon Naika Gakkai Zasshi, 2003)