ORIGINAL RESEARCH
Effect of labor conditions on quality of life and degree of dysphonia among teachers. hygienic requirements to their prevention
Pirogov Russian National Research Medical University, Moscow, Russia
Correspondence should be addressed: Dubrovina Ekaterina Aleksandrovna
ul. Ostrovityanova, 1, Moscow, 117997, Russia; moc.liamg@anivorbudxelake
Compliance with ethical standards: the study was approved by the Local Ethics Committee of Pirogov Russian National Research Medical University (Protocol No. 159 as of November 21, 2016). Informed consent was obtained for every participant. The conducted study carries no risk to the participants and corresponds to the requirements of biomedical ethics.