The exact role of the emergency medical services varies by country. In some countries like the US and UK, their job is seen as bringing the patients to treatment. Until the 1970s, their ambulances carried patients to hospital and gave them little medical care. Since then, paramedics have been trained to give some medical care before they get to hospital. Other countries like France and Germany run them in a different way, where their job is seen as bringing treatment to the patients. In those countries, doctors work on ambulances and they try to treat patients at the scene rather than take them to hospital.