Ziyaeifard,M , , Totonchi,Z , , Aghdaii,N , , Abbaszadeh,R , and Dayani,A . "Anesthetic Management in an Unanticipated Difficult Airway Because of Oropharyngeal Stenosis in a Patient With Pierre Robin Syndrome Undergoing Pediatric Congenital Heart Surgery: A Case Report", Iranian Heart Journal, 24, 3, 2023, 94-99.