Syed Bilal Ahmed, Sajida Jabeen. “Infra-Orbital Hyper-Pigmentation (Dark Circles) A Study of Its Prevalence, Etiology and Its Association With Other Dermatological Symptoms Among Young Adults”. Pakistan Journal of Medical & Health Sciences 17, no. 06 (June 30, 2023): 562. Accessed June 21, 2026. https://www.pjmhsonline.com/pjmhs/article/view/6456.