Article Text
Aetiology
A haemoglobin concentration of 140 g/l was associated with a lower mortality risk than concentrations ⩽120 g/l in older women with disabilities
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Footnotes
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For correspondence: Dr P H M Chaves, Johns Hopkins Center on Aging and Health, Baltimore, MD, USA. pchavesjhsph.edu
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Source of funding: National Institute of Aging.