title: The ultrastructure and growth of human nails.
mesh_terms: D005075:Biological Evolution; D002118:Calcium / Q000378:metabolism; D006801:Humans; D007633:Keratins / Q000378:metabolism; D009262:Nails / Q000254:growth & development / Q000378:metabolism / Q000648:ultrastructure*; D010743:Phospholipids / Q000378:metabolism
chemical_list: D010743:Phospholipids; D007633:Keratins; D002118:Calcium