title: Membrane changes associated with assembly of visna virus.
mesh_terms: D002213:Capsid; D002462:Cell Membrane / Q000648:ultrastructure*; D002478:Cells, Cultured; D003588:Cytopathogenic Effect, Viral; D005614:Freeze Fracturing; D008855:Microscopy, Electron, Scanning; D012328:RNA Viruses / Q000254:growth & development*; D014790:Visna-maedi virus / Q000254:growth & development* / Q000648:ultrastructure