Affiliations: [a] Department of Pediatric Neurology, Faculty of Medicine, Ankara University, Ankara, Turkey
Correspondence:
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Correspondence to: Gokcen Oz Tuncer, Department of Pediatric Neurology, Ankara University Hospitals, Dikimevi, Ankara 06100, Turkey. Tel.: +90 312 5956404; Fax: +90 312 3191440; E-mail: gokcenoz@hotmail.com.