title: [Studies on the structure of double-helix DNA in the last half century: Legislation for molecular biological research utilizing radioisotopes in Japan].
authors.forename: Junichi
authors.initials: J
authors.lastname: Tomizawa
mesh_terms: D004247:DNA; D007564:Japan; D008967:Molecular Biology / Q000331:legislation & jurisprudence*; D011868:Radioisotopes
chemical_list: D011868:Radioisotopes; D004247:DNA