title: Improved polymeric contrast agents for roentgenologic examination of the gastrointestinal tract. II. Preliminary report on animal investigations.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D003287:Contrast Media / Q000008:administration & dosage / Q000633:toxicity*; D003973:Diatrizoate; D004064:Digestive System / Q000000981:diagnostic imaging*; D004285:Dogs; D007274:Injections, Intraperitoneal; D051379:Mice; D008970:Molecular Weight; D011108:Polymers / Q000633:toxicity; D011859:Radiography; D013997:Time Factors
chemical_list: D003287:Contrast Media; D011108:Polymers; D003973:Diatrizoate