Balchev, G., C. Balabanov, and S. Murgova. “Penetrating Keratoplasty in Children”. Acta Medica Bulgarica 51, no. Suppl 1 (June 28, 2024): 22–25. Accessed July 2, 2024. https://journals.mu-sofia.bg/index.php/amb/article/view/113.