How to not ruin a 9 year-old Christmas’ Spirit!

Hej everyone,
I am a big fan of the comic cartoons from Pedromics, a researcher here at Karolinska Institutet.
Today, regarding day 9 , I have decided to use one of Pedromics cartoons to show what to avoid to not ruin a 9 year old Christmas Spirit!
Hope you enjoy it 😉

“Randomised Christmas Trial”

Happy Holidays
Warm regards
Ana Os´orio Oliveira


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