title: Gerogenic fractions in the tritiated rat.
mesh_terms: D000085:Acetates; D000367:Age Factors; D000375:Aging; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002623:Chemistry Techniques, Analytical; D002845:Chromatography; D002850:Chromatography, Gel; D004247:DNA / Q000032:analysis; D004590:Electrophoresis, Paper; D005260:Female; D008040:Genetic Linkage; D006868:Hydrolysis; D008099:Liver / Q000032:analysis / Q000378:metabolism*; D010429:Pentoses / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D011247:Pregnancy; D011270:Pregnancy, Animal; D012313:RNA / Q000032:analysis; D051381:Rats; D012995:Solubility; D013057:Spectrum Analysis; D014316:Tritium / Q000378:metabolism*
chemical_list: D000085:Acetates; D000596:Amino Acids; D010429:Pentoses; D014316:Tritium; D010758:Phosphorus; D012313:RNA; D004247:DNA