Association Of Bleeding Tendency With Time Under Target FIX Activity Levels In Severe Hemophilia B Patients Treated With Recombinant Factor IX Fc Fusion Protein - Shapiro, Amy; Potts, James; Li, Shuanglian; Valentino, Leonard A.; Diao, Lei; Wang, Ping; Robinson, Brian; Pierce, Glenn F; Jiang, Haiyan (Blood, 2013)