I will try to start from the end first.
The authority for sending them back into theatre, medically speaking, would be the base surgeon of the base he's affiliated with. That is normally a general practitioner, but he or she would never--not never, but it would be extremely rare--act against the advice of a specialist. It's probably more likely that the general practitioner, the base surgeon, based on military experience, would be more reluctant. We frequently have specialists who say they think the person is fine, and the general practitioner isn't comfortable with it. We always put ourselves in this position: if I'm the only doctor for an operating base or in Kandahar, do I want to be responsible for what might happen to this guy? So that's the easier part.
How you provide services in remote areas and....