Factors Involved in Vocal Fatigue: A Pilot Study. - D'haeseleer, Evelien; Behlau, Mara; Bruneel, Laura; Meerschman, Iris; Luyten, anke; Lambrecht, Stien; Cassol, Mauriceia; Corthals, Paul; Kryshtopava, Maryna; Wuyts, Floris L.; Claeys, Sofie; Van Lierde, Kristiane (Folia Phoniatrica et Logopaedica, 2016)