Comparison of efficacy and safety of topical glyceryl trinitrate vs. oral nifedipine in idiopathic perniosis: results of a randomized clinical trial. J Pak Assoc Dermatol [Internet]. 2016 Dec. 2 [cited 2026 Jun. 23];24(4):342-7. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/224