scientific article published on 24 June 2011
author: Sílvia Fraga, Elisabete Ramos, Sónia Ferreira Dias, Henrique Barros
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.