title: Concentration and purification of two small RNA viruses: mycophage PS-1 and bacteriophage phi6.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002499:Centrifugation, Density Gradient; D002501:Centrifugation, Zonal; D006801:Humans; D007372:Interferons / Q000032:analysis; D007739:L Cells; D051379:Mice; D010407:Penicillium; D011549:Pseudomonas; D012328:RNA Viruses / Q000302:isolation & purification*; D014721:Vesicular stomatitis Indiana virus
chemical_list: D007372:Interferons