Patient Population
During phase 2 of the study, newborns requiring intubation were eligible for enrollment. Since emergency intubation is time-sensitive, we applied a deferred consent procedure where caregivers were informed about the study protocol and procedure after the patient was stabilized. If consent was obtained, participants were included in the study. In case of refusal, images were discarded. Participants were excluded if they had abnormal anatomy of the oropharynx or airway.