Infantile‐onset parkinsonism, dyskinesia, and developmental delay: do not forget polyglutamine defects! oleh Heidy Baide‐Mairena, Arthur Coget, Nicolas Leboucq, Vincent Procaccio, Maud Blanluet, Pierre Meyer, Marie‐Claire Malinge, Marie‐Céline François‐Heude, Mathis Moreno, David Geneviève, Cecilia Marelli, Agathe Roubertie