1. Alleghny General Hosp, Pittsburgh, PA;
2. LeCom, Erie, PA;
3. Allegheny Health Network Cancer Institute, Pittsburgh, PA;
4. Allegheny Health Network, Pittsburgh, PA;
5. Allegheny Gen Hosp, Pittsburgh, PA;
6. West Penn Allegheny Health System, Pittsburgh, PA;
7. West Penn Cancer Institute, Pittsburgh, PA;
8. Western Pennsylvania Cancer Institute, Pittsburgh, PA;