534,013 HAEMOPHILIA Haemophilia. Proceedings of the IX Congress of the World Federation of Istanbul, 20-22 August 1974. Ed-s: O. N. Ulutin. I. R. Peake. Amsterdam 1975 Excerpta Medica 8° s. XI, nlb. 1, 273, nlb. 2, il. Excerpta Medica, International Congress Ser. nr 356