WCA-2021 GAA Interasma powered by FREI SA

Please be reminded that on October 31st, 2021 CET time will move backwards 1 hour.

To verify, please use the following link & fill in your location and time to see the difference with CET.


The Congress has been decided to be Virtual, and will be broadcasted live on October 30 – November 01, 2021.

All Commitments, Scientific Contributions, Registrations & Sponsorships will be credited to the new WCA dates.

We apologize for the inconvenience caused and hope that this crisis will be over soon, wishing you to be safe and well.

Louis-Philippe Boulet MD, FRCPC



Prof. Pascal Chanez

President, WCA 2021 Congress