https://openbooks.uct.ac.za/uct/catalog/view/1/1/6
PDF view of the file Rigid laryngoscopy, oesophagoscopy and bronchoscopy in adults
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https://researchersprofile.com/abstract/8899
Transnasal oesophagoscopy - A study of its advantages and limitations - ResearchersProfile
Transnasal oesophagoscopy - A study of its advantages and limitations - Transnasal oesophagoscopy is a convenient method for doing oesophagoscopy. It is done...
a studyoesophagoscopyadvantageslimitations