title: Isotopic studies of the biosynthesis of nucleic acid components; purines and pyrimidines.
authors.forename: M R
authors.initials: MR
authors.lastname: HEINRICH
authors.forename: D W
authors.initials: DW
authors.lastname: WILSON
authors.forename: S
authors.initials: S
authors.lastname: GURIN
mesh_terms: D009696:Nucleic Acids; D011687:Purines; D011743:Pyrimidines
chemical_list: D009696:Nucleic Acids; D011687:Purines; D011743:Pyrimidines; C030985:purine
keywords: NUCLEINS; PURINE AND PURINE BASES; PYRIMIDINES