Developmental and sequenced one-to-one educational intervention (DS1-EI) for autism spectrum disorder and intellectual disability: a two-year interim report of a randomized single-... oleh Antoine Tanet, Annick Hubert-Barthelemy, Marie-Noëlle Clément, François Soumille, Graciela C. Crespin, Hugues Pellerin, François-André Allaert, David Cohen, Catherine Saint-Georges, the GPIS study group