title: Microscopic determination of the amount of contractile material per muscle cell nucleus in the rat myocardium. I.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure*; D008297:Male; D009200:Myocardial Contraction; D009206:Myocardium / Q000166:cytology*; D009210:Myofibrils / Q000648:ultrastructure; D051381:Rats