DALLAS & CHATTANOOGA, Tenn.--(BUSINESS WIRE)--MD Buyline and MediTract, the nation’s #1 provider of Supply Chain and Contract Management Lifecycle solutions, announced today its platinum sponsorship of the 2015 Purchased Services Conference. The annual conference takes place Sept. 28-29, 2015 at The Westin Houston, Memorial City, in Houston, Texas. The conference is being hosted by Global Healthcare Professional Network (GHP Network), a dynamic educational organization that provides best practi