1. NHS launches information strategy;McSean, T.;BMJ,1993
2. Information Management Group. IM&T strategy overview,1992
3. The Read clinical classification;Chisholm, J.;BMJ,1990
4. Essays on kuru;Hornabrook, R.W.,1976
5. Slow transmissible diseases of the nervous systenm;Prusiner, S.B.;Vols,1979