Anyway, I'd like to present this flow chart which explains the complex process by which a medical student (sort of like a stem cell) eventually transforms into their specific field. It was sent to me by an anonymous reader, so thank you whoever you are.
You'll notice neurology isn't listed here, likely due to space constraints. I'd put it somewhere under internal medicine, with a special "Freaks and Geeks" section leading to my field.
(click to enlarge)