title: Chemical analysis of biological materials with the laser probe mass-spectrograph.
mesh_terms: D000663:Amphibians; D000818:Animals; D002118:Calcium / Q000032:analysis*; D002356:Cartilage / Q000032:analysis; D006801:Humans; D007834:Lasers; D013058:Mass Spectrometry / Q000379:methods*; D010758:Phosphorus / Q000032:analysis*; D012754:Sharks; D014070:Tooth / Q000032:analysis*; D003313:Zea mays / Q000032:analysis
chemical_list: D010758:Phosphorus; D002118:Calcium