Around here the postgraduate system of education in medicine is quite different than the American one, but still I could detect quite a few similarities - because I guess, whereever you are, patients, the medical hierarchy (the ice-cream cone) and what it does to you as intern, is quite the same.
So I could relate to the terror of the first rotation, to the thrill of the Emergency Ward, the horror of Gomer City, the internal detachment, the need to hide inside yourself, to witness colleagues being crushed by the system... and also the realization of what's going on and trying to get ahead of it. Unfortunately, I had more Jo's and Leggos than Fats during my internship... because his rules, even though they sound funny and callous at first are hard-learned lessons and much more important than always doing whatever medical science is able to offer.
Of course, this novel is also a product of its time, a male-dominated environment where sex is kind of the only relief of stress and pressure - not to say that it's much different nowadays, especially if you work hours that only allow you to go home to sleep but otherwise you pretty much spend your day in the hospital -, but I could have done without the various sexual experiences of the interns. Then again, it's a symptom of this system.
Overall, certainly a novel an intern, no matter where he or she works, should read.