The “New Normal” Following the COVID-19 Pandemic: A Simple Infection-Prevention Measure Using a Surgical Mask during Transnasal Endoscopy
2010 ◽
Vol 31
(S1)
◽
pp. S1-S3
◽
2010 ◽
Vol 31
(S1)
◽
pp. S1-S3
◽
Keyword(s):
Keyword(s):