title: Radiographic method for in vivo estimation of biological activity of induced gastrointestinal cancers in rats.
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced / Q000000981:diagnostic imaging*; D000818:Animals; D005770:Gastrointestinal Neoplasms / Q000139:chemically induced / Q000000981:diagnostic imaging*; D008297:Male; D008722:Methods; D009374:Neoplasms, Experimental / Q000000981:diagnostic imaging; D009604:Nitrosoguanidines; D011859:Radiography; D051381:Rats; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging; D013997:Time Factors
chemical_list: D009604:Nitrosoguanidines