GRIN2A and Rolandic epilepsy: The result of the genetic testing report for patient P5 diagnosed with Rolandic epilepsy (RE), was upgraded to positive based on a recent publication: the author identified the same GRIN2A variant (c.1341T > A p.Asn447Lys) in a boy with RE by WES and demonstrated that Asn447Lys is a gain-of-function variant (Xu et al., 2018).