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Phosphatidylethanol (PEth) is an interesting biomarker finding increased use for detecting long term alcohol abuse with high specificity and sensitivity. Prior to detection, sample preparation is an(More)
(1) Speech and Hearing Sciences course at the Federal University of Santa Maria UFSM, Santa Maria, RS, Brazil. (2) Speech and Hearing Sciences course at the Federal University of Santa Maria UFSM,(More)
Conflito de interesses: inexistente time and spectrum of the sound stimuli, what propitiates clues to approximate the patient of normal hearing experiences1. The technological advances and the(More)
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