Soyeon Kim; Hyeryeong Nam; Bora Lee; Kyung‑Ann Lee; Kyung Seek Choi; 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 2023, 38, 482-489.