title: A new nomenclature of group I introns in ribosomal DNA.
authors.forename: S
authors.initials: S
authors.lastname: Johansen
authors.forename: P
authors.initials: P
authors.lastname: Haugen
mesh_terms: D004275:DNA, Ribosomal / Q000235:genetics*; D007438:Introns; D008969:Molecular Sequence Data; D009626:Terminology as Topic
chemical_list: D004275:DNA, Ribosomal