DOI: 10.1055/s-00025477

International Archives of Otorhinolaryngology

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References


MT-Ministério do Trabalho [internet].
Brasília: Portal do Trabalho e Emprego; Available at:
http://portal.mte.gov.br/data/files/FF8080812BE914E6012BEF1CA0393B27/nr_09_at.pdf . Accessed Jan 11,2014

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