1. KeynesS., LappidgeM. Alfred the Great: Asser's life of King Alfred and other contemporary sources. Harmondsworth: Penguin, 1987; 74
2. KeynesS., LappidgeM. Alfred the Great: Asser's life of King Alfred and other contemporary sources. Harmondsworth: Penguin, 1987: 54
3. Crohn's disease of the large intestine
4. Crohn's disease of the anal region.