1.
Chawla A, Sathishkumar S, Ratra D. Focal choroidal excavation and choroidal neovascular membrane following sildenafil intake. Digit J Ophthalmol [Internet]. 2025 Jun. 8 [cited 2026 May 3];31(2). Available from: https://djo.harvard.edu/index.php/djo/article/view/1071