Vieira Marcelo L C, Pomerantzeff Pablo M, Pillco Limbert L S, Da Costa Joyceli Melo, Mathias Wilson, Leal Samira B, Grinberg Max, Andrade José L, Ramires José A F
Division of Imaging Diagnosis, Sector of Echocardiography, University of São Paulo Medical School, São Paulo, Brazil.
Echocardiography. 2003 Jul;20(5):435-8. doi: 10.1046/j.1540-8175.2003.03074.x.