First of all, one can see the data if they have a subscription. Secondly, showing causal relationship is a very straightforward analysis of the data based on a properly designed experiment. If you have a peer-reviewed paper showing a causal relationship between drinking milk and psychosis, I encourage you to post it. Thirdly, this is the British Medical Journal which is one of the most respected scientific journals in the world. I am sure that the paper was thoroughly peer-reviewed and if the analysis on a causal relationship was not robust and the experimental design was not, the paper would not have been published.
blah, blah, blah
one doesn't have a subscription; one has no interest in getting a subscription and one can see from what is made available to the unwashed masses from the
British Medical Journal that no claim is made of an increase in psychosis due to marijuana use but rather that the
risk of psychosis *appears* to be increased by marijuana use.
that's a very different proposition than what you appear to be stating, and one would think much easier to float in the neverending parade of bullshit put forth by practitioners of the social *sciences*.
I suppose you don't read many scientific pubs, then. Rarely does one state anything as if it were written in stone.
I'm wondering why you asked for the data if you had no interest in it.
What I appear to be stating is quoting from two separate papers. I've shown peer-reviewed work that links cannabis use to psychosis, based on the science they did. There is always room for additional science that may further reinforce the current hypothesis, may make the hypothesis more limited and/or specific, or conflict with it. This is the way knowledge grows.
And, as far as I know, medicine is an applied science.