title: Ultrastructural study and comparative analysis of fluoride content of enameloid in sea-water and fresh-water sharks.
mesh_terms: D000818:Animals; D003743:Dental Enamel / Q000032:analysis* / Q000648:ultrastructure*; D004577:Electron Probe Microanalysis; D005459:Fluorides / Q000032:analysis*; D005618:Fresh Water; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D011199:Potentiometry; D012623:Seawater; D012754:Sharks / Q000033:anatomy & histology*; D014097:Tooth, Unerupted / Q000032:analysis / Q000648:ultrastructure; D014961:X-Ray Diffraction
chemical_list: D005459:Fluorides