Adolescent 1 Anesthesia 1 Article 1 COVID-19 1 Cancellation 1 Child 1 Child, Preschool 1 Children 1 Humans 1 Imaging 1 Infant 1 Infant, Newborn 1 Male 1 Orders 1 Pandemics 1 Pediatric radiology 1 Radiology 1 Retrospective Studies 1 SARS-CoV-2 1 adolescent 1 age 1 anesthesia 1 child 1 clinical study 1 computer assisted tomography 1 congenital disorder 1 controlled study 1 coronavirus disease 2019 1 demographics 1 developmental disorder 1