[1]
BJÖRK L., ERIKSON U., INGELMAN B. and ZAAR B. 1974. 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, 2 (Jun. 1974), 103-105. DOI:https://doi.org/10.3109/03009737409178976.