title: Air contrast vs. metrizamide in neonatal gasless abdomen.
mesh_terms: D000388:Air; D003287:Contrast Media; D006801:Humans; D007231:Infant, Newborn; D008793:Metrizamide; D011860:Radiography, Abdominal
chemical_list: D003287:Contrast Media; D008793:Metrizamide