ZETTEL, G [Intestinal gas evacuation as a preparatory procedure in abdominal roentgenography]. [electronic resource] - Therapie der Gegenwart Sep 1957 - 337-8 p. digital Publication Type: Journal Article ISSN: 0040-5965 Subjects--Topical Terms: Abdomen--diagnostic imagingGastrointestinal ContentsHumansIntestinesRadiography, Abdominal