KARA, E. Et Al. 2021. EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL. Fresenius Environmental Bulletin , vol.30, no.10 , 11371-11378.

KARA, E., METE, B., DEMİRHİNDİ, H., DOĞAN METE, E., & KANAT, C., (2021). EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL. Fresenius Environmental Bulletin , vol.30, no.10, 11371-11378.

KARA, ERTAN Et Al. "EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL," Fresenius Environmental Bulletin , vol.30, no.10, 11371-11378, 2021

KARA, ERTAN Et Al. "EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL." Fresenius Environmental Bulletin , vol.30, no.10, pp.11371-11378, 2021

KARA, E. Et Al. (2021) . "EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL." Fresenius Environmental Bulletin , vol.30, no.10, pp.11371-11378.

@article{article, author={ERTAN KARA Et Al. }, title={EFFECT OF USE OF SURGICAL FACEMASKS AND FFP2 FACEPIECE RESPIRATORS WITH OR WITHOUT EXHALATION VALVES ON BREATHING AIR QUALITY AND PHYSIOLOGICAL OUTCOMES IN HEALTH WORKERS: A QUASI-EXPERIMENTAL MODEL}, journal={Fresenius Environmental Bulletin}, year=2021, pages={11371-11378} }