Bülent Yaşar, Şirin Yaşar, Pembegül Güneş. Face skin hyperpigmentation during pegylated interferon and ribavirin therapy. Turkish Journal of Gastroenterology [Internet]. 2019 Jul. 25 [cited 2025 Jul. 16];26(2):189-90. Available from: https://tjg.avesjournals.com/index.php/tjg/article/view/3126