Hempelmann A, Cobilanschi J, Heils A, Muhle H, Stephani U, Weber Y, Lerche H, Sander T. Lack of evidence of an allelic association of a functional GABRB3 exon 1a promoter polymorphism with idiopathic generalized epilepsy. Epilepsy Res. 2007 Apr;74(1):28–32. doi: 10.1016/j.eplepsyres.2006.12.001. PMID: 17215107.