LarynxLaryngeal NeoplasmsLaryngectomyVocal CordsLaryngeal DiseasesLaryngeal MucosaPhonationGlottisLaryngeal MusclesEpiglottisLaryngeal NervesHypopharyngeal NeoplasmsLaryngoscopyPharyngeal NeoplasmsKymographyLaryngeal CartilagesCricoid CartilageVoice QualitySymptom AssessmentCarcinoma, Squamous CellHypopharynxDepressionHyoid BoneArytenoid CartilageLaryngeal EdemaPharyngectomyVocal Cord ParalysisDeglutitionHead and Neck NeoplasmsLaryngitisTreatment OutcomeQuestionnairesDeglutition DisordersVoice DisordersOrgan Sparing TreatmentsSeverity of Illness IndexStroboscopyFollow-Up StudiesBehavioral SymptomsPsychiatric Status Rating ScalesAir PressureVocalization, AnimalTime FactorsRisk FactorsVibrationCoughProspective StudiesLaryngostenosisTracheal DiseasesOropharyngeal NeoplasmsAcousticsTracheotomyLaryngoscopesVoiceMouth NeoplasmsPharynxQuality of LifeRetrospective StudiesTracheostomyPrevalenceTracheaAffective SymptomsSmokingTomography, X-Ray ComputedOccupational Diseases