HLA-DRA and classic Hodgkin lymphoma: The rs6903608 variant is located close to HLA‐DRA and has been identified as a cis‐expression Quantitative Trait Locus (eQTL) for HLA‐DRA expression (http://genenetwork.nl/bloodeqtlbrowser),45 raising the possibility that it is decreased expression of HLA‐DR, rather than any particular allele, that increases risk of EBV‐negative cHL.