resumo The authors are grateful to Dr. L. Rebouta for the RBS studies and to Dr. G. Hungerford for his careful reading of the manuscript.
autores Maria de Jesus de Matos Gomes Rolo, Anabela G. Vasilevskiy, Mikhail Gomes, M. J. M. Chahboun, A. Chahboun, A. Conde, O. Conde, O. Gomes, M. J. M. Rolo, A.G. Vasilevskiy, M.I. Gomes, M.J.M.