Write a paper about mergers and acquisition in pharmaceutical industry.

I would like you to write about mergers and acquisition in pharmaceutical industry. This topic will be part a of a larger paper. Below is the outline for this topic and I will provide some sources that can be used.
• Mergers & Acquisition
o Overview
o Frequency in recent years
o Why different/financially successful in pharma industry?
o Hidden agenda
• Tax inversion: relocating headquarters outside the U.S.
• Recent changes in policy threaten tax inversion
o Other types of mergers/acquisitions: pharma’s relationships with distributors/’retail’ stores
• Conclusion/Recommendations for the Path Ahead
o Pricing & merger/acquisition: regulation/intervention of the government