title: Electron microscopic studies on sialoglycoprotein layer of rat Friend tumor cells.
mesh_terms: D000818:Animals; D005622:Friend murine leukemia virus; D008854:Microscopy, Electron; D009374:Neoplasms, Experimental / Q000209:etiology / Q000378:metabolism*; D009438:Neuraminic Acids / Q000032:analysis*; D051381:Rats
chemical_list: D009438:Neuraminic Acids