title: The ultrastructure of the principal cells and intraepithelial leucocytes in the initial segment of the rat epididymis.
mesh_terms: D000818:Animals; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D004822:Epididymis / Q000166:cytology* / Q000378:metabolism; D004847:Epithelial Cells; D004848:Epithelium / Q000378:metabolism; D006056:Golgi Apparatus; D007962:Leukocytes / Q000166:cytology*; D008214:Lymphocytes / Q000166:cytology; D008297:Male; D008854:Microscopy, Electron; D051381:Rats