title: A sampling technique for quantitative electron microscopy of subcellular fractions.
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology*; D002499:Centrifugation, Density Gradient; D008722:Methods; D008854:Microscopy, Electron; D051381:Rats; D013347:Subcellular Fractions / Q000032:analysis; D013574:Synaptosomes / Q000032:analysis