I only Need Introudction Paragraaph done

Write a 300 word introuduction to this paper. 

I just need the introuduction paragraph done. 

• Compare health systems of various countries.
• Describe approaches to connecting public health and the health care system.
• Describe lessons learned from past issues.
• Identify future trends in public health.

Include at least 3 references.

Format your summary according to APA guidelines.

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