Liu X, Wang C, Hong Y, Zhao T, Wang G, Gaertig MA, Sun M, Li S, Li X. N-terminal Huntingtin Knock-In Mice: Implications of Removing the N-terminal Region of Huntingtin for Therapy. PLoS Genet. 2016 May 20;12(5):e1006083. doi: 10.1371/journal.pgen.1006083.