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2. Classification of dysphonic voice: acoustic and auditory perceptual measures;Eadie;J Voice,2005
3. Chronic hoarseness in children. Evaluation based on personal series of 64 cases;Kauffman;Pediatrie,1992
4. Biological development and the normal voice in puberty;Pedersen,1997
5. Aerodynamic examination of laryngeal function;Yanagihara,1969