https://www.sforl.org/wp-content/uploads/2020/03/Alerte-Covid-19-Endoscopies-et-fibroscopies.pdf 2020 France guideline incision of trachea, nos tracheotomy endoscope, nos nursing operative procedure, nos Ent Surgery endoscopy, nos endoscopy internal nose, nos endoscopes pneumonia, viral coronavirus infections COVID-19
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