Origin of urinary methylated purines.
D000225:Adenine / Q000652:urine*; D000818:Animals; D002247:Carbon Isotopes; D006147:Guanine / Q000652:urine*; D006801:Humans; D008223:Lymphoma / Q000652:urine*; D008297:Male; D008325:Mammary Neoplasms, Experimental / Q000652:urine*; D008715:Methionine / Q000378:metabolism*; D051379:Mice; D051381:Rats; D014970:Xanthines / Q000652:urine*
D002247:Carbon Isotopes; D014970:Xanthines; D006147:Guanine; D008715:Methionine; D000225:Adenine