One example is gumby gumby studies in w.a hospitals. A few years back you could find online the discussion of 'all data lost'. A few months back all I could find was one uni paper that only mention the gumby gumby w.a info as a reference (internet obviously f'ed that one).

I guess they dont want people knowing what older researchers know. Anything that's a plant and good for cancer just poof! Gone!