Data
507,969 items of data are available, covering 488,521 participants, encoded using Data-Coding 
2301.
Defined-instances run from 0 to 1, labelled using Instancing 
2.
 
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
488,092 participants, 488,092 items
 
Instance 1 : First repeat assessment visit (2012-13)
19,877 participants, 19,877 items
 
Notes
Spectrometer used to process sample
0 Related Data-Fields
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0 Resources
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