For the non-Irish, remember that Northern Ireland has a total population of 1.5 million, and the 7 hospitals concerned are covering less than half of these (depending on how you read the numbers of course).
You can drive across the whole province of northern ireland in 2.5 hrs.
[youtube http://www.youtube.com/watch?v=kAVY1gX3Snc&w=560&h=315]
Incidentally I went to school with the guy in the video. That’s how small the country is!