Reply to 'H-STS, L-STS and KRJ-I are not authentic GEPNET cell lines'. - Alvarez MJ; Yan P; Alpaugh ML; Bowden M; Sicinska E; Zhou CW; Karan C; Realubit RB; Mundi PS; Grunn A; Jäger D; Chabot JA; et al. (Nature genetics, 2019)