title: Circadian variations in pyrimidine nucleotide synthesis in rat liver.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D004247:DNA / Q000096:biosynthesis; D008099:Liver / Q000378:metabolism*; D008297:Male; D011742:Pyrimidine Nucleotides / Q000096:biosynthesis*; D012313:RNA / Q000096:biosynthesis; D051381:Rats
chemical_list: D011742:Pyrimidine Nucleotides; D012313:RNA; D004247:DNA