Methylmercury CompoundsMercury Poisoning, Nervous SystemMercury PoisoningMercuryFood ContaminationHairEnvironmental PollutantsMercury CompoundsSeychellesSeafoodFishesWater Pollutants, ChemicalUnithiolMercury IsotopesOrganomercury CompoundsEthylmercury CompoundsMaternal ExposurePrenatal Exposure Delayed EffectsIraqEnvironmental ExposureDental StaffVolatilizationWater Pollution, ChemicalBody BurdenF-Box MotifsSeleniumAtlantic IslandsMaternal-Fetal ExchangeFish ProductsOrganoselenium CompoundsMercuric Chloride