Acknowledgement
The authors would like to thank all the workers who participated in the study.
References
- Gomez-Ochoa SA, Franco OH, Rojas LZ, et al. COVID-19 in health-care workers: a living systematic review and meta-analysis of prevalence, risk factors, clinical characteristics, and outcomes. Am J Epidemiol 2021;190:161-175. https://doi.org/10.1093/aje/kwaa191
- Soetikno R, Teoh AY, Kaltenbach T, et al. Considerations in performing endoscopy during the COVID-19 pandemic. Gastrointest Endosc 2020;92:176-183. https://doi.org/10.1016/j.gie.2020.03.3758
- Guda NM, Emura F, Reddy DN, et al. Recommendations for the operation of endoscopy centers in the setting of the COVID-19 pandemic: World Endoscopy Organization guidance document. Dig Endosc 2020;32:844-850. https://doi.org/10.1111/den.13777
- Higashimori A, Maruyama H, Nadatani Y, et al. The "New Normal" following the COVID-19 pandemic: a simple infection-prevention measure using a surgical mask during transnasal endoscopy. Clin Endosc 2021;54:618-620. https://doi.org/10.5946/ce.2020.291
- Nadatani Y, Higashimori A, Takashima S, et al. A mask-based infection control method for screening endoscopy may prevent SARS-CoV-2 transmission and relieve staff anxiety. SAGE Open Med 2021;9:20503121211047060.
- Urakawa S, Hirashita T, Momose K, et al. Intraluminal gas escape from biopsy valves and endoscopic devices during endoscopy: caution advised during the COVID-19 era. Endosc Int Open 2021;9:E443-E449. https://doi.org/10.1055/a-1336-2766
- Keil R, Hlava S, Stanovsky P, et al. Commonly available but highly effective protection against SARS-CoV-2 during gastrointestinal endoscopies. PLoS One 2021;16:e0254979.
- Su C, Wang S, Shih C, et al. Visualization of hot flows of tall space fires in model experiments with Schlieren Photography technique. Springerplus 2016;5:1744.
- Glosse P, Denneler S, Stier O, et al. Investigation of the powder aerosol deposition method using shadowgraph imaging. Materials (Basel) 2021;14:2502.