Homo sapiens
Protocols: Tumour B cells collected from peripheral blood, sampled as close to diagnosis date as possible (mean 4 months (range 0-49 months)). Qiagen RNeasy mini RNA extraction kits (Qiagen, Hilden, Germany) as per manufacturer's instructions  NEBNext Poly(A) mRNA Magnetic Isolation Module (New England Biolabs, Massachusetts, USA) as per manufacturer's instructions