A clinical and cost-effectiveness trial of a parent group intervention to manage challenging restricted and repetitive behaviours in young children with autism spectrum disorder: s... oleh Victoria Grahame, Linda Dixon, Sue Fletcher-Watson, Deborah Garland, Magdalena Glod, Jane Goodwin, Zoe Grayson, Saoirse Heron, Emma Honey, Rebecca Iversen, Adetayo S. Kasim, Ashleigh Kernohan, Ehsan Kharatikoopaei, Ann Le Couteur, Leila Mackie, Ayesha Mathias, Helen Probert, Deborah Riby, Priyanka Rob, Leanne Rogan, Sarah Thompson, Luke Vale, Eamonn Walls, Elspeth Imogen Webb, Christopher Weetman, Faye Wolstenhulme, Ruth Wood, Jacqui Rodgers