Huntington’s disease age at motor onset is modified by the tandem hexamer repeat in TCERG1 oleh Sergey V. Lobanov, Branduff McAllister, Mia McDade-Kumar, G. Bernhard Landwehrmeyer, Michael Orth, Anne E. Rosser, REGISTRY Investigators of the European Huntington’s disease network, Jane S. Paulsen, PREDICT-HD Investigators of the Huntington Study Group, Jong-Min Lee, Marcy E. MacDonald, James F. Gusella, Jeffrey D. Long, Mina Ryten, Nigel M. Williams, Peter Holmans, Thomas H. Massey, Lesley Jones