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Odds ratios (OR) with 95% CIs are shown by individual studies describing pooled overall benefits for complete hearing recovery7,10,11,12,13,14,15,16,18,19,20,21,22,24 (A) and for any hearing recovery7,10,11,12,13,14,15,16,17,18,19,20,21,22,24 (B). MT indicates medical therapy.
