title: Letter: Blood-lead levels, behaviour and intelligence.
mesh_terms: D002648:Child; D002653:Child Behavior Disorders / Q000139:chemically induced; D004781:Environmental Exposure; D006801:Humans; D008607:Intellectual Disability / Q000139:chemically induced; D007854:Lead / Q000097:blood* / Q000633:toxicity; D007855:Lead Poisoning / Q000150:complications*; D009787:Occupational Medicine
chemical_list: D007854:Lead