[Electron microscopic studies on interstitial connective tissue of the human heart due to aging].
D000375:Aging / Q000502:physiology*; D003238:Connective Tissue; D004583:Electrons; D006321:Heart / Q000033:anatomy & histology*; D006801:Humans; D008854:Microscopy, Electron; D009206:Myocardium / Q000033:anatomy & histology*
AGING/physiology; MYOCARDIUM/anatomy and histology