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If I had a list of studies I wouldn't have asked here, but have heard enough about rat's stomachs exploding and seen the tumour photos to know there's a good chance these are likely to point to some genuine results. And only today The Mail published that drug trial details are trade secrets, even from the doctors, who have to prescribe on what are basically only press releases and some have been withdrawn since when found not to work or worse. If that's the law (which it is) then GM isn't going to be far off that position. Secrecy tends to be the norm in corporate and government circles, and as that example is 100% correct then it implies it isn't restricted just to medicines. I'll keep looking, I have other sources left to check.