title: THE ULTRASTRUCTURE OF HUMAN EMBRYONIC MYOCARDIUM.
mesh_terms: D002468:Cell Physiological Phenomena; D004583:Electrons; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D006652:Histological Techniques; D006653:Histology; D008853:Microscopy; D008854:Microscopy, Electron; D009206:Myocardium
keywords: CELL STRUCTURE; EMBRYO; HISTOLOGY; MICROSCOPY, ELECTRON; MYOCARDIUM