This is a very useful article for the diagnosis and management of choanal atresia. The review offers indications for further diagnostic manouvres in order to verify whther the CA is isolated or associated in a more complex syndrome. Alhtough useful, the discussion begins as too schematic. Something more might be added in the history section.

• competing interests: no
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• Experience and credentials in the specific area of science:

  I am clinical geneticist

• Publications in the same or a related area of science: No
  
• References: None