title: X-ray microanalysis of freeze-dried ultrathin frozen sections of a regulating epithelium from the snail Otala.
mesh_terms: D000818:Animals; D002712:Chlorides / Q000032:analysis; D004577:Electron Probe Microanalysis; D004848:Epithelium / Q000032:analysis / Q000378:metabolism / Q000648:ultrastructure; D005612:Freeze Drying; D006605:Hibernation; D007501:Iron / Q000032:analysis; D008854:Microscopy, Electron; D011188:Potassium / Q000032:analysis; D012825:Silicon / Q000032:analysis; D012908:Snails / Q000032:analysis* / Q000378:metabolism / Q000648:ultrastructure; D014882:Water-Electrolyte Balance; D014965:X-Rays; D015032:Zinc / Q000032:analysis
chemical_list: D002712:Chlorides; D007501:Iron; D015032:Zinc; D011188:Potassium; D012825:Silicon