title: Portraits of viruses: tobacco necrosis virus and its satellite virus.
mesh_terms: D049673:History, 20th Century; D008854:Microscopy, Electron; D010935:Plant Diseases; D010942:Plant Viruses / Q000648:ultrastructure; D012526:Satellite Viruses / Q000648:ultrastructure; D014773:Virology / Q000266:history