BANSAL, M.; RAI, T. Hyperpigmented plaque with raised border at right angle of mouth involving oral mucosa. Journal of Pakistan Association of Dermatologists, [S. l.], v. 23, n. 4, p. 465–466, 2016. DOI: 10.66344/jpad.23.4.2013.331. Disponível em: https://www.jpad.com.pk/index.php/jpad/article/view/331. Acesso em: 12 apr. 2026.