SF doctor

[Candidatebuzz]

Hello, I am trying to get information about attaching to SF as a doctor. I am currently pursuing a military scholarship to medical school, and have no prior service. I am aware that SF medicine is not an official MOS, and that they only function in a support capactity. What I can't seem to find out is what they actually do, what kind of training they undergo, how they apply/are selected, how they interact with the medical sergeants working with them, and what kind of residency (if any) is required/prefered for selection. Any information would be greatly appreciated.