title: ADHD, lead exposure and prevention: how much lead or how much evidence is needed?
authors.forename: Joel T
authors.initials: JT
authors.lastname: Nigg
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology* / Q000517:prevention & control*; D015897:Comorbidity; D004781:Environmental Exposure / Q000706:statistics & numerical data*; D019317:Evidence-Based Medicine; D006801:Humans; D020263:Lead Poisoning, Nervous System / Q000453:epidemiology* / Q000517:prevention & control*; D015995:Prevalence; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors