TY  - JOUR 
T1  - Hoarseness and vocal tract discomfort and associated risk factors in air traffic controllers
JO  - Brazilian Journal of Otorhinolaryngology
A1  - Korn, Gustavo Polacow
A1  - Villar, Anna Carolina
A1  - Azevedo, Renata Rangel
SN  - 1808-8694
UL  - 10.1016/j.bjorl.2018.02.009
VL  - 85 
Y1  - 2019
PB  - Brasil 
ER  -