Efficacy may be defined simply as the health benefit to be derived from the use of technology or how effective a given technology is in diagnosing or treating a condition. If a product or service actually produces some health benefits, it can be considered efficacious or effective.
Discuss the following questions and support your answers with evidence from the literature:
What is the likelihood that a different procedure would result in a better diagnosis?
If the problem is more accurately diagnosed, what is the likelihood of a better cure
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