title: Replication and evolution of viroid-like pathogens.
authors.affiliation: Department of Biochemistry, Cornell University Medical College, New York, N.Y.
authors.forename: H D
authors.initials: HD
authors.lastname: Robertson
mesh_terms: D005075:Biological Evolution; D004279:DNA, Viral / Q000235:genetics; D003698:Hepatitis Delta Virus / Q000235:genetics; D012367:RNA, Viral / Q000235:genetics; D014772:Viroids / Q000235:genetics* / Q000502:physiology; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral