Why don’t researchers just do the analysis on all the existing UK ME/CFS Biobank samples to see what it reveals first?

Existing samples from the UK ME/CFS Biobank will be used. However, we need a very large number of people for a GWAS study, typically at least 10,000–20,000 patients. This will require a significant expansion of the Biobank, and collaboration with the NIHR Biosample Centre in Milton Keynes.