Researchers at University Medical Center in Tucson, Arizona, say they'll study the power of prayer to heal traumatic injury, ease pain or speed healing. Starting this week, they say dozens of open-heart surgery patients will be the target of special prayers. The patients won't know if they're being prayed for or see the people praying for them. But the chief of surgery thinks there's a chance that prayer will make a difference for patients. Dr. Allan Hamilton, a Harvard-trained neurosurgeon, says he's "seen that patients who are spiritually and emotionally connected do very well in their recovery." The project is funded by the National Institutes of Health.