KOPELMAN, L. M. 有關有效治療和無效治療的概念和倫理爭端: Conceptual and Moral Disputes about Futile and Useful Treatments. International Journal of Chinese & Comparative Philosophy of Medicine, [S. l.], v. 3, n. 1, p. 29–44, 2000. DOI: 10.24112/ijccpm.31389. Disponível em: https://ejournals.lib.hkbu.edu.hk/index.php/ijccpm/article/view/1389. Acesso em: 29 jun. 2022.