I doubt doctors will get better at this in our lifetimes. As we discover ever more about the human body, how are doctors expected to keep up with the research on top of everything else?

I’m hoping AI systems can help. A good medical AI should be able to stay abreast of all the research, know your personal medical history and suggest and evaluate any and all medical tests that are needed. Doctors will hate it, but I expect AIs will give much more accurate diagnoses than humans before long.