A reversible gene trap collection empowers haploid genetics in human cells. by Bürckstümmer, T, Banning, C, Hainzl, P, Schobesberger, R, Kerzendorfer, C, Pauler, F, Chen, D, Them, N, Schischlik, F, Rebsamen, M, Smida, M, Fece de la Cruz, F, Lapao, A, Liszt, M, Eizinger, B, Guenzl, P, Blomen, V, Konopka, T, Gapp, B, Parapatics, K, Maier, B, Stöckl, J, Fischl, W, Salic, S, Taba Casari, MR