POU4F3 and nodular sclerosis classical Hodgkin lymphoma: By screening for DFNA15 in 42 unrelated Korean families with AD-NSHL by sequencing analyses of POU4F3, Lee et al. uncovered a family with a frameshift mutation by deletion of 14 nucleotides (c.662_675del14, p.Gly221Glufs*77) [24].