549,532 HEMOPHILIA Hemophilia and von willebrand’s disease in the 1990 s : a new decade of hcpes and challenges : Proceedings of the XIX Congress of the World Federation of Hemophilia, Washington, D. C. 14-19 August 1990 / eds. Jeanne M. Lusher, Craig M. Kessler. -Amsterdam [etc.] : Excerpta Medica, 1991. - XIV 516 s. : il., Wykr ; 25 cm (International Congress Series ; nr 943) ISBN 0-444-81432-9