By Susan Stephens
http://stream.publicbroadcasting.net/production/mp3/wnij/local-wnij-887105.mp3
Rockford, IL – There's a growing demand for bone marrow transplants to treat a number of different cancers of the blood. The process has gotten simpler, too: WNIJ's Susan Stephens stopped by the Rock River Valley Blood Center to see how it's done.