> They polled hospitals in Michigan, New York and other border states? The Canadians that I know who have got to the US for care go to places like the Mayo Clinic or Sloan-Kettering.
They also polled Canadians directly to approach the question from both sides.
> Several sources of evidence from Canada reinforce the notion that Canadians seeking care in the United States were relatively rare during the study period. Only 90 of 18,000 respondents to the 1996 Canadian NPHS indicated that they had received health care in the United States during the previous twelve months, and only twenty indicated that they had gone to the United States expressly for the purpose of getting that care.
They also polled Canadians directly to approach the question from both sides.
> Several sources of evidence from Canada reinforce the notion that Canadians seeking care in the United States were relatively rare during the study period. Only 90 of 18,000 respondents to the 1996 Canadian NPHS indicated that they had received health care in the United States during the previous twelve months, and only twenty indicated that they had gone to the United States expressly for the purpose of getting that care.