“Safety and Efficacy of 20% Azelaic Acid Vs 4% Hydroquinone in Melasma: A Comparative Study in A Tertiary Care Hospital”. Annals of Medicine and Medical Sciences (October 16, 2025): 1201–1205. Accessed October 31, 2025. http://ammspub.com/index.php/amms/article/view/359.