A report published by the Journal of General Internal Medicine shows how important preparation and supervision are during residency.

VOA: special.2010.07.13

And so not only do you put the time into college, you put the time into medical school, and you put the time into your residency and you put your time into your internship.

你不但把时间花在读大学上，花在读医学院上，你还把时间花在打理住所上,花在实习上。

耶鲁公开课 - 死亡课程节选

Graduates of study programs at most foreign medical schools may have to complete two or three years of residency, although there are exceptions.

VOA: special.2009.06.02

How long a residency lasts depends on the chosen area of medicine.

VOA: special.2009.06.02

They also examined hospitals without residency programs.

VOA: special.2010.06.16

for up to four years. During that time,they may apply for permanent residency.

VOA: standard.2010.05.24