SLC44A2 and hearing loss disorder: In the guinea‐pig, CTL2 is a target for antibody‐induced hearing loss [http://www.ncbi.nlm.nih.gov/pubmed/14973250?dopt=AbstractPlus] and in man, a polymorphism in CTL2 constitutes the human neutrophil alloantigen‐3a (HNA‐3a; [http://www.ncbi.nlm.nih.gov/pubmed/20037594?dopt=AbstractPlus]).