Hanski, C Increased concentration of 7-methylguanine and 1-methylhypoxanthine in urine of rats bearing Yoshida tumour. [electronic resource] - Cancer letters Jun 1980 - 339-43 p. digital Publication Type: Journal Article ISSN: 0304-3835 Standard No.: 10.1016/0304-3835(80)90027-0 doi Subjects--Topical Terms: AnimalsChromatography, LiquidGuanine--analogs & derivativesHypoxanthines--urineMethylationRNA, Transfer--metabolismRatsSarcoma, Yoshida--metabolism