title: Congenital H-type tracheoesophageal fistula: 2 cases safely diagnosed with metrizamide.
mesh_terms: D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D008793:Metrizamide; D011859:Radiography; D014138:Tracheoesophageal Fistula / Q000151:congenital / Q000000981:diagnostic imaging*
chemical_list: D008793:Metrizamide