1. Epilepsy: Frequency, Causes and Consequences;Hauser,1990
2. Epidemiology, classification, natural history, and genetics of epilepsy;Shorvon;The Lancet,1990
3. The nature of epilepsy in the general population;Hart;Epilepsy Research,1995
4. Anatomical Therapeutic Chemical (ATC) Classification Index (Including Defined Daily Doses (DDDs) for Plain Substances);World Health Organisation Collaborating Centre for Drug Statistics Methodology,1994