Correction: Novel PDE6B Mutation Presenting with Retinitis Pigmentosa – A Case Series of Three Patients - Palmowski-Wolfe, Anja; Stingl, Katarina; Habibi, Imen; Schorderet, Daniel; Tran, Hoai Viet (Klinische Monatsblätter für Augenheilkunde, 2019)