Jennifer Thomas, USA Today,
When Irvin Rosenfeld was a boy, he was stricken with a rare disease that caused tumors to grow on his bones, leaving him in constant, crippling pain. He underwent several surgeries to remove the tumors, but new ones grew back. He was prescribed all sorts of painkillers and muscle relaxants, but still he ached. Then, as a college student, Rosenfeld smoked marijuana for the first time. Almost immediately, he felt better than he had in years. Now a 48-year-old stockbroker in Fort Lauderdale, Fla.