A medical technician ties a tourniquet on the arm of cancer patient Deborah Charles before attaching an intravenous line at Georgetown University Hospital in Washington May 23, 2007. Since Charles, a journalist for Reuters, was diagnosed with breast cancer in November 2006, she has had to back away from actively covering the news and has had three operations, four rounds of chemotherapy and has been visiting the hospital at least once a week for appointments and treatment. Photo taken May 23, 2007. To match feature WITNESS-CANCER/CHEMOTHERAPY REUTERS/Jim Bourg (UNITED STATES)