walter reed national military medical center in bethesda, maryland, would not give any details about why the first lady was still there...experts say years of cuts to nhs budgets and staff has led to patients waiting longer for chemotherapy and radiotherapy (file pic)..

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embolization “cuts off the blood supply to a certain part of the body,” according to the national institutes of health..

"the drug must be administered at the right time point during development," he said..