Out of pure curiosity... any chance of finding that chart still?
I'll certainly look out for one Christiaan, but the hospital where I remember seeing it has been closed for seven years and I noticed the developers had moved in the other day!
Out of pure, vulgar interest in my field, the hospital was Atkinson Morley's Hospital in Wimbledon. This hospital is where Stirling Moss did much of his rehabilitation after his near fatal crash and huge numbers of patients benefited from pioneering neurosurgery . Most importantly from my point of view, AMH where the original prototype CT (Computed Tomography) scanner was installed and all the early clinical work - done by Doctor James Ambrose - was done. This machine is the one that can be seen in the Welcome Medical Gallery in the Science Museum and I used to work on it!
Roger.