1. Department of Pediatric Neurology; Kuopio University Hospital; Kuopio Finland
2. Department of Pediatrics; Oulu University Hospital and PEDEGO Research Unit; Medical Research Center Oulu; University of Oulu; Oulu Finland
3. Department of Obstetrics and Gynecology; Kuopio University Hospital; Kuopio Finland
4. The National Library of Finland; Helsinki Finland
5. Department of Obstetrics and Gynecology; Helsinki University Hospital and University of Helsinki; Helsinki Finland
6. Epilepsy Center/NeuroCenter; Kuopio University Hospital and Faculty of Health Sciences; School of Medicine; Institute of Clinical Medicine; University of Eastern Finland; Kuopio Finland