We also refer to the review paper by Panczyk et al. (2015) who listed the evidence for the involvement of 5-HT1A, 5-HT2C, 5-HT3, 5-HT4, and 5-HT7Rs as well as the 5-HT transporter (SERT) in epilepsy (Panczyk et al., 2015). This evidence concerns the gene HTR4 and epilepsy.