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Extra cancer screening could help pick up early cases in dense breasts

Dense breast tissue and tumours appear similar on scans, which can make the latter hard to identifyGorodenkoff/Shutterstock If you have dense breast tissue, you could benefit from an extra round of cancer screening, according to a large trial that found...

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Can atolls survive sea-level rise?

Across the Indian and Pacific oceans, tiny atolls — islands formed atop ancient coral reefs — are facing an existential crisis.Unchecked sea-level rise could all but wipe them out in the coming century.Rising seas have already made their mark on...

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