Dr. Philip Agop Philip, medical oncologist at the Barbara Ann Karmanos Cancer Institute and a professor of medicine and oncology at Wayne State's School of Medicine, says screening rates for colon cancer are still unsatisfactory. "Some people think that if they have no family history of colon cancer, they don\'t need to be screened. Other people don\'t have a family physician, so they aren\'t told to be screened. For others, cost is an issue, and many people don\'t want to go through the preparation or the procedure itself, so they avoid it,\" Philip says.