SIDNEY — President and CEO of Wilson Health, Mark Klosterman, has announced his retirement, effective April 11. After more than six years, Klosterman with be relocating to be closer to his family. Kloserman’s tenure has been marked by many achievements. Under his eadership, Wilson Health has not only expanded its reach beyond Shelby County to Miami County but has also introduced pivotal service lines, including the Wilson Health Cancer Center, T…