Annotation of epilepsy clinic letters for natural language processing. - Fonferko-Shadrach, Beata; Strafford, Huw; Jones, Carys; Khan, Russell A.; Brown, Sharon; Edwards, Jenny; Hawken, Jonathan; Shrimpton, Luke E.; White, Catharine P.; Powell, Robert; Sawhney, Inder M. S.; Pickrell, William O.; et al. (Journal of Biomedical Semantics, 2024)