Deletion upstream of MAB21L2 highlights the importance of evolutionarily conserved non-coding sequences for eye development by Ceroni, F, Cicekdal, MB, Holt, R, Sorokina, E, Chassaing, N, Clokie, S, Naert, T, Talbot, LV, Muheisen, S, Bax, DA, Kesim, Y, Kivuva, EC, Vincent-Delorme, C, Lienkamp, SS, Plaisancié, J, De Baere, E, Calvas, P, Vleminckx, K, Semina, EV, Ragge, NK