Blood has long been used as an aid to diagnosis but now more than ever it can be key to establishing the cause of disease. From glass bottles to complex plastic systems, the storage of blood has evolved and so too have the processes used to analyse the small blood sample given at your GP's surgery.

The transcript and downloadable versions of the lecture are available from the Gresham College website:

Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,500 lectures free to access or download from the website.

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