Correction: Letrozole vs. Placebo Pretreatment in the Medical Management of First Trimester Missed Miscarriage: a Randomized Controlled Trial - Torky, Haitham A.; Marie, Heba; ElDesouky, ElSayed; Gebreel, Samy; Raslan, Osama; Moussa, Asem A.; Ahmad, Ali M.; Zain, Eman; Mohsen, Mohamed N. (Geburtshilfe und Frauenheilkunde, 2018)