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Correction: Testosterone Affects Song Modulation during Simulated Territorial Intrusions in Male Black Redstarts (Phoenicurus ochruros)

  • Beate Apfelbeck,
  • Sarah Kiefer,
  • Kim G. Mortega,
  • Wolfgang Goymann,
  • Silke Kipper
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There was an error in the Competing Interests statement. The correct Competing Interests statement is as follows: I have read the journal's policy and have the following competing interests: Novartis provided us with the aromatase inhibitor “letrozole” for our experiments. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.