547,389 FORSGREN LARS Epidemiology of seizure disorders : clinical characterization and analysis of risk factors in children with febrile convulsions, newly referred adults and mentally retarded persons with epilepsy : [thesis / av Lars Forsgren ; University of Umea. - Umea : University, 1990. - 194 s. : il., wykr. ; 25 cm + wkł. [2] s. (Umea University Medical Dissertations, ISSN 0346-6612 ; new Ser. nr 270) ISBN 91-7174-479-7