BJÖRK LARS, ERIKSON UNO, INGELMAN BJÖRN, and ZAAR BIRGlTTA. “Improved Polymeric Contrast Agents for Roentgenologic Examination of the Gastrointestinal Tract: I. Preliminary Report on the Chemistry of the Polymers”. Upsala Journal of Medical Sciences 79, no. 2 (June 1, 1974): 103-105. Accessed May 16, 2024. https://ujms.net/index.php/ujms/article/view/7407.