Rett syndrome in a pair of full sisters - Kok, F; Alves, Rosana Souza Cardoso; Martinho, P S; Otto, Priscila Guimarães; Machado, Luís dos Ramos; Diament, Aron Judka; Gonzalez, Claudette Hajaj (Congress of the International Child Neurology Association, 1992)