disease > congenital disease > malformation > De Lange syndrome

disease > stomatology > dysmorphic facies > De Lange syndrome

... > disease > congenital disease > malformation > dysmorphia > dysmorphic facies > De Lange syndrome

disease > complex syndrome > De Lange syndrome

disease > developmental disorder > mental retardation > De Lange syndrome

disease > disability > mental retardation > De Lange syndrome