Fig. 2From: Supraglottic jet oxygenation and ventilation improves oxygenation during endoscopic retrograde cholangiopancreatography: a randomized controlled clinical trialConsolidated standards of reporting trial flow diagram. BMI, body mass index; ASA, American Society of Anesthesiologists; Group N, the supplementary oxygen via nasopharyngeal airway group; Group W, the supplementary oxygen via WNJ group; Group WS, SJOV via WNJ groupBack to article page