title: Quantitative evaluation of polysomes and ribosomes by density gradient centrifugation and electron microscopy.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D003201:Computers; D046911:Macromolecular Substances; D008433:Mathematics; D008854:Microscopy, Electron; D012270:Ribosomes; D012756:Sheep; D013053:Spectrophotometry; D013961:Thyroid Gland / Q000166:cytology
chemical_list: D046911:Macromolecular Substances