Cholesteatoma disease recidivism after canal wall up tympanomastoidectomy with or without obliteration (CLEAR-EAR): A protocol for a randomized controlled trial - Chiara Erfurt; Maud J. de Rooij; Robert J. Stokroos; Louise V. Straatman; Hans G. X. M. Thomeer (PLoS ONE, 2026)