title: A freeze-fracture study of bullfrog gastric oxyntic cells.
mesh_terms: D000818:Animals; D001001:Anura; D002462:Cell Membrane; D002477:Cells / Q000166:cytology; D003594:Cytoplasmic Granules / Q000032:analysis; D004792:Enzyme Precursors / Q000032:analysis; D005613:Freeze Etching; D005615:Freezing; D006651:Histocytochemistry; D006652:Histological Techniques; D002479:Inclusion Bodies; D007365:Intercellular Junctions; D007413:Intestinal Mucosa / Q000166:cytology*; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D011892:Rana catesbeiana; D011894:Rana pipiens; D013270:Stomach / Q000166:cytology*
chemical_list: D004792:Enzyme Precursors