title: An ultrastructural study of mast granule formation in embryonic skin.
mesh_terms: D000818:Animals; D002462:Cell Membrane; D003594:Cytoplasmic Granules / Q000254:growth & development*; D004721:Endoplasmic Reticulum; D005260:Female; D005333:Fetus; D005865:Gestational Age; D006056:Golgi Apparatus; D006801:Humans; D008407:Mast Cells; D051379:Mice; D008854:Microscopy, Electron; D011247:Pregnancy; D012270:Ribosomes; D012867:Skin / Q000166:cytology*