title: Use of ultrafiltration and ultracentrifugation to determine virus size.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases; D006564:Herpesviridae / Q000166:cytology*; D066298:In Vitro Techniques; D014461:Ultracentrifugation; D014780:Viruses / Q000166:cytology*