Table 1.

Inclusion and Exclusion Criteria

Inclusion Criteria
Population	○ Endoscopy performed by Otolaryngology residents/ physicians ○ Adult or pediatric patients
Intervention	○ Use of smartphone adapters for flexible nasolaryngoscopy
Comparator	○ Endoscopy tower video recordings of flexible nasolaryngoscopy, or no recording
Outcome	○ Patient satisfaction ○ Patient care ○ Trainee learning ○ Video quality ○ Diagnostic accuracy
Study Design	○ Randomized and non-randomized comparative studies, retrospective and prospective cohort studies, case series ○ Published in English language
Exclusion Criteria
Population	○ Non-Otolaryngology-trained residents/ physicians
Intervention	○ Endoscopy other than flexible nasolaryngoscopy ○ No use of smartphone adapters
Comparator	○ NA
Outcome	○ No reported outcomes
Study Design	○ Single case reports ○ Case series with N < 10 ○ Non-English language