Anchor: 5. Research studies of cost-effectiveness are needed to convince physicians and administrators that having staff available to address alcohol problems is an integral component of the practice of medicine and part of their mission.
Entailed: An integral component of the practice of medicine is to address alcohol problems in a cost-effective manner.
Contradiction: Physicians do not practice medicine. 
Contradiction: The speaker's voice is the same as it has always been.
Contradiction: The region's history can be traced to Roman times.
Contradiction: A lot of events occurred, driving more and more people to the area.
Contradiction: Two men are wearing uniforms.