Does the size of a QR code matter?

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Tags

1. #passer
2. #effective
3. #inches
4. #250mm
5. #approximately
6. #magazine
7. #distance
8. #where
9. #metres
10. #printed
11. #billboard
12. #smartphones
13. #relationship
14. #about
15. #between
16. #nominal
17. #minimum
18. #would