1. Yale University School of Medicine; Department of Pediatrics; 333 Cedar Street WP493 P.O. Box 208064 New Haven CT USA 06520-8064
2. Hospital Geral do Estado Professor Osvaldo Brandão Vilela; Department of Clinical Medicine; Siqueira Campos Avenue, 2095 Trapiche da Barra Maceió Alagoas Brazil 57010000