TY - JOUR T1 - Appearance of an unusual sign on optical coherence tomography in diabetic maculopathy: subretinal onion rings JO - Arquivos Brasileiros de Oftalmologia A1 - Tekin, Kemal A1 - Inanc, Merve A1 - Atilgan, Cemile Ucgul SN - 0004-2749 UL - 10.5935/0004-2749.2024-0172 VL - 88 Y1 - 2025 PB - Brasil ER -