[1] Univ Utrecht, Van Creveldklin, Univ Med Ctr, Ctr Benign Hematol Thrombosis & Hemostasis, Utrecht, Netherlands
[2] Univ Utrecht, Univ Med Ctr, Div Woman & Baby, Utrecht, Netherlands
[3] Netherlands Hemophilia Patients Soc, Nijkerk, Netherlands
[4] Univ Med Ctr Utrecht, Julius Ctr Hlth Sci & Primary Care, Utrecht, Netherlands