title: Ultrastructure of the human mammary gland. I. Development of the fetal gland throughout gestation.
mesh_terms: D001940:Breast / Q000196:embryology / Q000648:ultrastructure*; D002454:Cell Differentiation; D003593:Cytoplasm; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure; D005260:Female; D005333:Fetus; D005865:Gestational Age; D006056:Golgi Apparatus / Q000648:ultrastructure; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D012270:Ribosomes / Q000648:ultrastructure