Funda??o Santa Casa de Miseric?rdia do Par? Hospital. Department of Pediatrics. Division of Pediatric Intensive Care. Bel?m, PA, Brazil / Metropolitan University Center of the Amazon. Department of child health. Bel?m, PA, Brazil.; Universidade Federal do Rio Grande do Sul. Department of Pediatrics. Division of Pediatric Intensive Care. Porto Alegre, RS, Brazil.; Funda??o Santa Casa de Miseric?rdia do Par? Hosp...