Minutes of U.K. Haemophilia Centre Directors, held in Oxford, tenth meeting, 20/11/1979 - 21/11/1979. Includes opening address by Professor Bloom (first meeting as Chairman of the Haemophilia Centre Directors), report on the 1978 annual returns from Haemophilia Centre Directors, future arrangements for collection and analysis of national data, haematuria working party, von Willebrand disease working party, hepatitis working party, supplies of NHS factor VIII concentrate, factor VIII assay working party.