Impact of essential genes on the success of genome editing experiments generating 3313 new genetically engineered mouse lines by Elrick, H, Peterson, KA, Willis, BJ, Lanza, DG, Acar, EF, Ryder, EJ, Teboul, L, Kasparek, P, Birling, M, Adams, DJ, Bradley, A, Braun, RE, Brown, SD, Caulder, A, Codner, GF, DeMayo, FJ, Dickinson, ME, Doe, B, Duddy, G, Gertsenstein, M, Goodwin, LO, Hérault, Y, Lintott, LG, Lloyd, KCK