http://www.theglobeandmail.com/servlet/story/LAC.20070728.BILLS28/TPStory/TPNational/Ontario/
So, if you have serious emergency health problems in any Canadian border cities which would cost a lot for the national health program to treat, they deal with you by transferring you to US hospitals.
Kind of like how Mexicans with serious health problems somehow end up at US hospitals.
Could this have to do with the high cost of US health care? Mexico and Canada dumping their costly cases here?