TY  - JOUR 
T1  - State-of-the-art in professional voice
JO  - Brazilian Journal of Otorhinolaryngology
A1  - Crespo, Agricio
A1  - Korn, Gustavo
SN  - 1808-8694
UL  - 10.1016/j.bjorl.2021.05.016
VL  - 88 
Y1  - 2022
PB  - Brasil 
ER  -