Correct citation: Burbacher TM, Shen DD, Liberato N, Grant KS, Cernichiari E, Clarkson T. Comparison of blood and brain mercury levels in infant monkeys exposed to methylmercury or vaccines containing thimerosal. Environ Health Perspect. 2005 Aug;113(8):1015-21.
Discusses methylmercury, not ethylmercury, the latter of which is thimerosal (which is no longer used in childhood vaccines in the U.S. other than the flu vaccine). Widely debunked.