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Despite the f0(980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( qq¯ ) meson, a tetraquark ( qq¯qq¯ ) exotic state, a kaon-antikaon ( KK¯ ) molecule, or a quark-antiquark-gluon ( qq¯g...

Background

A polypill comprising statins, multiple blood-pressure-lowering drugs, and aspirin has been proposed to reduce the risk of cardiovascular disease.

Methods

Using a 2-by-2-by-2 factorial design, we randomly assigned participants without cardiovascular disease who had an eleva...

Background

For women with oestrogen receptor (ER)-positive early breast cancer, treatment with tamoxifen for 5 years substantially reduces the breast cancer mortality rate throughout the first 15 years after diagnosis. We aimed to assess the further effects of continuing tamoxifen to 10 year...
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