title: ULTRASTRUCTURE OF ENDOTHELIUM OF THE FROG HEART.
mesh_terms: D000818:Animals; D001001:Anura; D002468:Cell Physiological Phenomena; D004583:Electrons; D004699:Endocardium; D004727:Endothelium; D006321:Heart; D006652:Histological Techniques; D006653:Histology; D008853:Microscopy; D008854:Microscopy, Electron; D012106:Research
keywords: CELL STRUCTURE; ENDOCARDIUM; EXPERIMENTAL LAB STUDY; FROGS; HISTOLOGICAL TECHNICS; HISTOLOGY; MICROSCOPY, ELECTRON