Worth a read only if you subscribe to the FT.
All I can see is 10 lines of waffle there that simply state it was a 'failure' with nothing at all to back it up. So why exactly was it a 'failure' ?
---------- Post added at 02:17 ---------- Previous post was at 00:43 ----------
Edit: A far better link,
https://www.bbc.co.uk/news/health-58876089