Comparison of efficacy and safety of topical glyceryl trinitrate vs. oral nifedipine in idiopathic perniosis: results of a randomized clinical trial. Journal of Pakistan Association of Dermatologists, [S. l.], v. 24, n. 4, p. 342–347, 2016. DOI: 10.66344/jpad.v24i4.224. Disponível em: https://www.jpad.com.pk/index.php/jpad/article/view/224. Acesso em: 22 aug. 2026.