title: Observations on calcareous corpuscles using a scanning electron microscope.
mesh_terms: D002118:Calcium / Q000032:analysis*; D004170:Diphyllobothrium / Q000032:analysis / Q000648:ultrastructure*; D004577:Electron Probe Microanalysis / Q000379:methods; D008274:Magnesium / Q000032:analysis; D008855:Microscopy, Electron, Scanning / Q000379:methods
chemical_list: D008274:Magnesium; D002118:Calcium