Because the patients have to trust the medical professionals with their health and their life. One bad decision and it could make the patient really sick so it is very important for the patient and the medical doctor to have a trusted bond.
Hope this helps,
Davinia.
Ok during this time, they were fighting for land, so they wanted: guns, gunpowder, knives, lead for musket balls, rum, cloth, etc they didn't want to lose these things it changed their life and they then depended on it.
A place where magma wells up to the surface from Earth's mantle is the Hot Spot
