Silva Barbosa, Adriana, Lima de Carvalho, PatrĂ­cia, Nery Ferreira, Luciano, Silva de Oliveira Boery, Rita, AND da Silva Sena, Edite. " Bioethical implications of research on embryonic stem-cells" Acta Bioethica [Online], Volume 19 Number 1 (7 July 2013)