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In the Middle Ages barbers used to work for the Military as surgeons, For example, they used to amputate, study phlebotomy, and treat cataract
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In 900 CE a doctor named Rhazes discovered the difference between small pox and the measles.
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In the earlier hospital regulation, physicians and surgeons started to become licensed and receiving training, like, all are medical employees are.
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In the Thirteenth Century, there was growth of hospitals in the Middle East. The rules of their religion, help teach people social responsibilities for example, providing for the poor, and caring for the sick.
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The founding of the many Islamic hospitals, each hospitals education made hospitals make separate ward for different illnesses, nurses were now trained, and medication was starting to develop.
