Ralf Reilmann, Andrew McGarry, Igor D Grachev, Juha-Matti Savola, Beth Borowsky, Eli Eyal, Nicholas Gross, Douglas Langbehn, Robin Schubert, Anna Teige Wickenberg, Spyros Papapetropoulos, Michael Hayden, Ferdinando Squitieri, Karl Kieburtz, G Bernhard Landwehrmeyer, European Huntington's Disease Network, Huntington Study Group investigators, Pinky Agarwal, Karen E Anderson, Nasir A Aziz, Jean-Phillippe Azulay, Anne C Bachoud-Levi, Roger Barker, Agnieszka Bebak, Markus Beuth, Kevin Biglan, Stephanie Blin, Stefan Bohlen, Raphael Bonelli, Sue Caldwell, Fabienne Calvas, Jonielyn Carlos, Simona Castagliuolo, Terrence Chong, Phyllis Chua, Allison Coleman, Jody Corey-Bloom, Rebecca Cousins, David Craufurd, Jill Davison, Eric Decorte, Giuseppe De Michele, Laura Dornhege, Andrew Feigin, Stephanie Gallehawk, Pascale Gauteul, Carey Gonzales, Jane Griffith, Alexander Gustov, Mark Guttman, Beatrix Heim, Hope Heller, Lena Hjermind, Sergey Illarioshkin, Larry Ivanko, Jessica Jaynes, Mollie Jenckes, Barbara Kaminski, Anne Kampstra, Agnieszka Konkel, Svetlana Kopishinskaya, Pierre Krystkowiak, Suresh K Komati, Alexander Kwako, Stefan Lakoning, Guzal Latipova, Blair Leavitt, Clement Loy, Cheryl MacFarlane, Louise Madsen, Karen Marder, Sarah Mason, Neila Mendis, Tilak Mendis, Andrea Nemeth, Louise Nevitt, Virginia Norris, Christine O'Neill, Audrey Olivier, Michael Orth, Ashley Owens, Peter Panegyres, Susan Perlman, Joy Preston, Josef Priller, Alicja Puch, Oliver Quarrell, Domenica Ragosta, Amandine Rialland, Hugh Rickards, Anna M Romoli, Christopher Ross, Anne Rosser, Monika Rudzinska, Cinzina V Russo, Carsten Saft, Victoria Segro, Klaus Seppi, Barbara Shannon, David Shprecher, Clemence Simonin, Zara Skitt, Jaroslaw Slawek, Paola Soliveri, Sandro Sorbi, Ferdinando Squitieri, Valarie Suski, Iwona Stepniak, Park Sungmee, Sofia Temirbaeva, Claudia Testa, Anette Torvin-Moller, Stefanie Uhl, Christina Vangsted-Hansen, Christophe Verny, Paola Wall, Francis Walker, Paula Wasserman, Grzegorz Witkowski, Jan Wright, Zuleykha Zalyalova, Daniel Zielonka