title: Comparison of histophotometric and biochemical myosin-ATPase estimations.
mesh_terms: D000251:Adenosine Triphosphatases / Q000302:isolation & purification*; D000818:Animals; D005260:Female; D005865:Gestational Age; D006321:Heart / Q000254:growth & development; D006651:Histocytochemistry; D009206:Myocardium / Q000201:enzymology*; D010783:Photometry / Q000379:methods; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000251:Adenosine Triphosphatases