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.