I am looking for some official material on Baduk.
Those documents that can prove Baduk is good for dementia or brain training are preferred.
Any kind of form such as thesises, research reports or archives are welcomed.
Please let me know if you have something even if you don't think it would be appropriate. 
This is for my friend, who is trying to get a talent visa with his teaching-baduk ability.
Thank you!
 
You would..