LaryngitisHoarsenessLaryngoscopyStroboscopyLaryngeal MucosaLaryngeal DiseasesLaryngeal EdemaLarynxVocal CordsVocal Cord ParalysisVoice DisordersCroupLipoid Proteinosis of Urbach and WietheGastroesophageal RefluxArytenoid CartilageTuberculosis, LaryngealVoice QualityPharyngitisIntubation, IntratrachealRecurrent Laryngeal Nerve InjuriesRecurrent Laryngeal Nerve