Here, the doctor sends them for tests in his own hospital, gets the results, determines results according to his own diagnosis. Many times that is impossible there, they have to send them elsewhere to get the test as the equipment necessary is regulated to a different hospital in the region. The results are interpreted there, often the patient ends up being treated there. The doctor was barely involved.
However HIV would likely not differ. It would more likely differ with far more expensive equipment.
It is the reason that they give when they come here. One thing you may do is google it up and see if I'm just talking out my behind.
You make private practice illegal and over regulate where tests and treatment is done you wind up with cogs in the wheel.
Here's a story about one of the problems in the National Post. Over regulation keeps qualified doctors from even practicing, even though they were actively sought to fill in the shortages...
Shortages caused by what?
http://www.nationalpost.com/news/story.html?id=ff90ad9a-27fc-40e5-bd16-369bb739f6fe&k=68609
And here is one about Canadian educated doctors leaving for better "working conditions", what caused the shortages to begin with...
http://www.mult-sclerosis.org/news/Aug2000/DoctorsLeavingCanada.html