Hartford Courant (Internet / Print) 03/28/06 http://www.courant.com/news/health/hc-health-coma0321.artmar28,0,1805318.story?coll=hc-headlines-health When a doctor utters the word "coma," the prognosis is usually bleak. Yet every day, physicians intentionally put patients into comas. Some medical experts, however, say drug-induced coma is an experimental treatment with little data behind it. "We're clear about what is therapy and we're clear about what counts as research, but experimentation falls in between the two," said Ronald Carson, an ethicist at the University of Texas Medical Branch at Galveston. "There are risks involved in doing something, as well as risks involved in doing nothing. We don't know what the person is going to be like at the other end."