title: Compositional mapping in biology: X rays and electrons.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000032:analysis; D004577:Electron Probe Microanalysis / Q000379:methods*; D004583:Electrons; D008855:Microscopy, Electron, Scanning / Q000379:methods*; D009132:Muscles / Q000032:analysis / Q000648:ultrastructure; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis; D014965:X-Rays
chemical_list: D010758:Phosphorus; D011188:Potassium; D002118:Calcium