[Canfield2003]  Canfield RL, et al.
Intellectual impairment in children with blood lead concentrations below 10 ug per
deciliter.
New England J Medicine. 348(16):1517-1526 (2003).
Cited by [Starr2005].
[Huseman1987]  Huseman CA, et al.
Childhood lead toxicity and impaired release of thyroid stimulation hormone.
Environ Res. 42:524-533 (1987).
Cited by [Starr2005].
[Stapleton1994]  Stapleton R.
Lead is a Silent Hazard.
New York: Walker Publishing Company (1994).
Cited by [Starr2005].
[Starr2005]  Mark Starr.
Hypothyroidism Type 2: The Epidemic
Columbia, MO: Mark Starr Trust (2005).
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Updated 2011 added: Hashimoto's & Grave's diseases.