title: Quantitation in histochemistry: a review of some commercially available microdensitometers.
mesh_terms: D003365:Costs and Cost Analysis; D003720:Densitometry / Q000295:instrumentation / Q000379:methods*; D005069:Evaluation Studies as Topic; D006651:Histocytochemistry; D008433:Mathematics; D008832:Microchemistry; D008853:Microscopy; D013053:Spectrophotometry