A perspective on the use of FVIII concentrates and cryoprecipitate prophylactically in surgery or therapeutically in severe bleeds in patients with von Willebrand disease unresponsive to DDAVP: Results on an international survey. On behalf of the subcommittee on von Willebrand factor of the Scientific and Standardization Committee of the ISTH - Foster, P A (Thromb Haemost, 1995)