Or the field really is that confusing, which wouldn't surprise me too much. You're dealing with variables that are constantly changing.
I'm pretty sure it doeesn't take 4 years of "whatever you feel like majoring in" in university before even starting med school, just to learn an angiogram classifier that a computer can probably outperform you on anyway.
At least, the English lit classes could probably be scrapped ...
A feature in Scientific American magazine casts some light on the troubled state of modern medicine.
Health Care Myth Busters: Is There a High Degree of Scientific Certainty in Modern Medicine?
Short excerpt:
Scientific American often gates its online articles after some time has passed, so I don't know how long it will be available.