Vitamin D 'aids lung cancer ops'

Lung cancer patients who have surgery in the winter are 40% more likely to die of the disease than those operated on in the summer, a US study suggests.

A study of 456 patients found high levels of vitamin D - from sun exposure and food supplements - had a positive impact on the success of surgery.

The Harvard University team said more research was needed and patients should not expect surgery in the summer.

UK experts said it was interesting but warned sun exposure could be dangerous.

Source BBC News

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