During the renaissance period, much surgery and dentistry was performed by

During the Renaissance, and even during the Middle Ages, barbers were known to provide medical skills to wealthy, elite and ruling families of Europe. This seems unusual in contemporary periods; however, barbers were skilled with a sharp blade, making him a good candidate for surgery. Examples of their medical care outside of the ruling classes can be seen in the knightly jousting tournaments, where barbers were expected to care for those injured during the tournament games. 

a. there was serious competition for tech jobs at the downtown clinic.

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c) troops march forward in close formation against newer, more accurate weapons