Soyeon Kim, Hyeryeong Nam, Bora Lee, Kyung‑Ann Lee, Kyung Seek Choi, and Hyun-Sook Kim. “The Effects of Oligomeric Proanthocyanidins on Hydroxychloroquine-Induced Retinopathy As Revealed by Nationwide Medical Claim Data for South Korea”. Archives of Rheumatology 38, no. 3 (September 30, 2023): 482–489. Accessed October 3, 2025. http://anadolupsikiyatri.net/index.php/pub/article/view/1366.