It proved that it could beat the best Jeopardy! champions in the world at their own game. Now, IBM’s Watson will try to help doctors make better medical decisions for their patients. WellPoint, Inc. and IBM announced an agreement today to develop and launch Watson-based medical solutions. It will be the first commercial applications of the IBM Watson technology. The program, which is scheduled to roll out next year, will begin by assisting nurses who manage complex patient cases. It will help the insurer to review treatment requests from medical providers. Stage two will put the technology…