title: Lead pollution in Tokyo--the pigeon reflects its amelioration.
mesh_terms: D000622:Aminolevulinic Acid / Q000097:blood; D000818:Animals; D010856:Columbidae / Q000097:blood*; D004785:Environmental Pollutants / Q000032:analysis* / Q000097:blood; D004912:Erythrocytes / Q000378:metabolism; D005742:Gasoline; D006207:Half-Life; D007854:Lead / Q000097:blood*; D007878:Legislation as Topic; D014041:Tokyo
chemical_list: D004785:Environmental Pollutants; D005742:Gasoline; D007854:Lead; D000622:Aminolevulinic Acid