Group C(codeconventional nasal cannula):Oxygen is given through a conventional nasal cannula

Comparison of Nasal Pharyngeal Set-flexible (NaPS flex) and conventional nasal oxygen cannula during sedation for gastroenteroscopy in Obese patients: a prospective randomized controlled clinical study

Comparison of Nasal Pharyngeal Set-flexible (NaPS flex) and conventional nasal oxygen cannula during sedation for gastroenteroscopy in Obese patients: a prospective randomized controlled clinical study

Evaluation of the Safety and Efficacy of Nasal Pharyngeal Set-flexible (NaPS flex) in Maintaining Ventilation in Patients Undergoing Sedation for ERCP