Movement of MDs between Canada and US not a one-way flow.
Godley
E
E
D001291:Attitude of Health Personnel; D002170:Canada; D003695:Delivery of Health Care / Q000592:standards; D004651:Employment / Q000592:standards*; D005551:Foreign Professional Personnel / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D009042:Motivation; D010820:Physicians / Q000523:psychology / Q000706:statistics & numerical data*; D012106:Research / Q000592:standards*; D014481:United States