At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.

Correspondence to Prof Stephen C Bourke, Respiratory Medicine, North Tyneside General Hospital, North Shields NE29 8NH, UK; stephen.bourke{at}nhct.nhs.uk Background The National Early Warning Score 2 ...

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