Authors: P L Lucassen; W J Assendelft; J T van Eijk; J W Gubbels; A C Douwes; W J van Geldrop Journal: Arch Dis Child Date: 2001-05 Impact factor: 3.791
Authors: Maria A L Saavedra; Juvenal S Dias da Costa; Gilberto Garcias; Bernardo L Horta; Elaine Tomasi; Rodrigo Mendonça Journal: J Pediatr (Rio J) Date: 2003 Mar-Apr Impact factor: 2.197