"The 'sad irony' of the government's case against pain doctor William E. Hurwitz is the evidence used against him was taken from patient files Hurwitz himself sent on a quarterly basis to the Drug Enforcement Agency, said defense attorneys Lawrence S. Robbins and Richard Sauber... 'It seemed to me a kind of absurdity, that doing what I had done would lead to any criminal culpability,' he said, when he took the stand in his own defense in his trial this past month in federal court. 'I spent my life trying to contribute to people's well being and health.'"