Corneal Cross-Linking (CXL) for Therapy-Resistant Keratitis with Corneal Melting: It Is Never Too Late! - Ribeiro Reis, Ana Paula; Germann, Ursula Maria; della Volpe Waizel, Maria; Handtke, Juliane; Scholl, Hendrik Pn.; Gatzioufas, Zisis (Klinische Monatsblätter für Augenheilkunde, 2020)