OKLAHOMA CITY, Oklahoma, April 2 -- The Oklahoma Medical Research Foundation issued the following news: Imagine if a single injection could stop the progression of the most common form of arthritis - and perhaps even reverse some of its debilitating damage. A new federal agency has targeted this as a "moonshot" project and has tabbed an Oklahoma Medical Research Foundation physician-scientist to help make the dream come true. OMRF rheumatologist Matlock Jeffries, M.D., will receive $2 million  more