WASHINGTON, May 24 (UPI) -- Presidential hopeful Sen. Hillary Clinton, D-N.Y., presented a seven-part plan Thursday aimed at lowering healthcare costs -- a roadmap that several doctors deemed encouraging. The proposal focuses solely on cutting costs, which Clinton identified as one of three areas critical to healthcare reform. Addressing students and faculty at the George Washington University Medical Center in Washington, Clinton said she would outline at a later time the other two key components of her reform agenda, improving quality and covering the uninsured. Clinton acknowledged her first rocky encounter with healthcare reform during her tenure as first lady...