Imagine you are one of the lawyers in the Pfizer v J&J lawsuit. You may choose which side you want to represent. In four paragraphs, either defend or attack the alleged practice of paying higher rebates to protect the drug's formulary position, knowing the high rebates create an high barrier to entry for new biosimilar entrants into the marketplace. Assume the practice of paying the high rebates is not illegal, and this lawsuit is actually about trademark infringement.