Telemarketing attendants: vocal assessment and voice related quality of life - Silvério, Kelly Cristina Alves; Alves, B. T.; Siqueira, Larissa Thaís Donalonso; Coelho, A. C.; Brasolotto, Alcione Ghedini; Guirro, Rinaldo Roberto de Jesus (CoMeT 2012 - Collegium Medicorum Theatri, 2012)