(marketscreener.com) HealthTrust, a leading healthcare performance improvement company, today announced it has completed the purchase of Resource Optimization & Innovation, LLC (ROi), a St. Louis-based group purchasing organization with members including Mercy, Orlando Health, Inc., and Franciscan Missionaries of Our Lady Health System. ROi is also accountable...http://www.marketscreener.com/news/HealthTrust-Completes-Acquisition-of-ROi--29318631/?utm_medium=RSS&utm_content=20191001