Alvarez-Pedrerol M, Ribas-Fito N, Torrent M, Carrizo D, Garcia-Esteban R, Grimalt JO, Sunyer J. Thyroid disruption at birth due to prenatal exposure to beta-hexachlorocyclohexane. Environ Int. 2008 Aug;34(6):737-40. doi: 10.1016/j.envint.2007.12.001