Federal University of Par?. Institute of Biological Sciences. Human Cytogenetics Laboratory. Bel?m, PA, Brazil.; Federal University of Par?. Institute of Biological Sciences. Human Cytogenetics Laboratory. Bel?m, PA, Brazil.; Federal University of Par?. Institute of Biological Sciences. Human Cytogenetics Laboratory. Bel?m, PA, Brazil.; University of S?o Paulo. Heart Institute. Medical School Hospital. S?o Paul...