In neurology for example, CAT and MRI scans are overused. "It may be hard for you to imagine, but in some British cities, this sort of expensive equipment is completely lacking," says Lai.
以神經科為例，電腦斷層掃瞄、核磁共振斷層掃瞄都太被濫用了，「你可能很難想像，在英國有些都市連這種昂貴儀器都沒有，」賴其萬說。