LAPEÑA, J. F. F. Invention and Innovation: novelty and necessity. Philippine Journal of Otolaryngology Head and Neck Surgery, [S. l.], v. 24, n. 1, p. 4, 2009. DOI: 10.32412/pjohns.v24i1.699. Disponível em: https://pjohns.pso-hns.org/index.php/pjohns/article/view/699. Acesso em: 25 apr. 2024.