Authors: Paulo Magno Martins Dourado; Jeane Mike Tsutsui; Antonio Carlos Palandri Chagas; João César Nunes Sbano; Vera Demarchi Aiello; Protásio Lemos da Luz; Wilson Mathias; Jose A F Ramires Journal: Cardiovasc Ultrasound Date: 2006-02-08 Impact factor: 2.062