[SS2] Public Forum (Symposium 2: How to deal with the results of genetic testing in pediatric neurology practice: from selection to accurate interpretation and explanation)

[SS2-3] 3）Progressive regression of social andcommunication skills in Down syndrome：a new disease concept

^○TATSURO KONDOH¹, AKIRA IMAMURA², KANAKO MORIFUJI³, HIDEYUKI NAKANE⁴, HIROYUKI MORIUCHI⁵ (1.Division of Developmental Disabilities, The Misakaenosono Mutsumi Developmental, Medical, and Welfare Center, Isahaya, Japan, 2.Child and Adolescent Psychiatry Community Partnership Unit, Nagasaki University Hospital, Nagasaki, Nagasaki, Japan, 3.Department of Nursing, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan, 4.Department of Psychiatric Rehabilitation Science, Unit of Rehabilitation Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan, 5.Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan)