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Learning Skills for Science (LSS)
Sources of some of the source material used in the lesson.
BUPA Health in the news report from 2009 about the benefits of a vitamin D supplement.
NHS leaflet giving guidance to health professionals about the risks of vitamin D deficiency.
Cancer Research UK Sun protection website
Australian news report suggesting that avoiding sunlight completely is leading to some Australians having a vitamin D deficiency.
BBC News report on a link between vitamin D and cancer protection.
Website of an American doctor who believes vitamin D deficiency is a common problem.
This web page describes how epidemiologists use five criteria to establish the strength of an association between a factor and an outcome.
The World Bank provides a valuable source of data about energy use across the world.
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