I cannot create a summary of the article titled "STAT+: After UnitedHealth moved in, Oregon sought to rein in corporate health care. Now, it's facing an early test" because this article is not included in the search results provided. The results provided include information about PeaceHealth's decision to replace Eugene Emergency Physicians with ApolloMD at three hospitals in Lane County, Oregon, but are not the data from the STAT+ article you asked to summarize. If you would like, I can create a summary of information about the change in PeaceHealth based on available sources, or you can provide me with the text of the STAT+ article you want to summarize.