Journal of Haemophilia, Guidelines on the diagnosis and management of chronic liver disease, by F. E. Preston, G. Dusheiko, C. A. Lee, C. A. Ludlam and P. L. Giangrande, 1995; Journal of Haemophilia, Guidelines on the diagnosis, management and prevention of hepatitis in haemophilia by M. Makris, T. Baglin, G. Dusheiko, P. L. Giangrande, C. A. Lee, C. A. Ludlam et al., 2001