What is the difference? I know the categorical is the regular IM where you can go for fellowships after. I see this on many of the program's pages on ERAS and I end up picking both. I might end up doing primary care or end up going for fellowship but I don't know and I dont care which one i end up with. So which one should I pick or can I pick both (if there's even a difference)? Do the programs know that I'm applying to both and does that matter? Thanks!