title: Electron microscopy of polyheads of bacteriophage T4 prepared by freeze-etching.
mesh_terms: D003090:Coliphages; D004926:Escherichia coli; D005613:Freeze Etching; D008854:Microscopy, Electron; D014764:Viral Proteins / Q000302:isolation & purification*
chemical_list: D014764:Viral Proteins