[ConservingFreedom]

20 years studies.

As I've already explained to you, there was no "20 year study" - just a review of studies conducted at one time or another during the last 20 years.

[Berlin_Freeper]

Right - "20 years studies" (what I said) is not "20 year study" (what you say I said).

Are you sober? (I mean completely.)