title: [Periodontologic study of lead exposed and non-exposed workers].
mesh_terms: D000622:Aminolevulinic Acid / Q000652:urine; D006801:Humans; D007855:Lead Poisoning / Q000175:diagnosis*; D009784:Occupational Diseases / Q000139:chemically induced*; D009911:Oral Hygiene Index; D010519:Periodontium / Q000187:drug effects*
chemical_list: D000622:Aminolevulinic Acid
vernacular_title: Periodontologische Untersuchung bleiexponierter und nicht exponierter Werktätiger.