title: Electron microscopy and biopsy: diagnostic clue provided on routine formalin-fixed material.
mesh_terms: D001706:Biopsy / Q000379:methods; D003470:Culture Media; D005260:Female; D005557:Formaldehyde; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D008854:Microscopy, Electron; D008875:Middle Aged; D015043:Zollinger-Ellison Syndrome / Q000473:pathology* / Q000648:ultrastructure
chemical_list: D003470:Culture Media; D005557:Formaldehyde