Roman Catholic Church doctrine supports intercessory prayer to saints. Numerous miracles were attributed to his intercession and to intercessory prayer near his remains. Randomized controlled trials of intercessory prayer have not yielded significant effects on health. "Intercessory prayer" is prayer offered for the benefit of other people. The early Christians continued to practice intercessory prayer on behalf of others after Jesus' death. Indeed, certainty of receiving intercessory prayer was actually associated with a higher incidence of complications. Everyday half an hour is spent for intercessory prayer. According to Stenger, these experiments have found no evidence that intercessory prayer works. There are also set forms for intercessory prayer, though this is now more often extemporaneous. The Holy Rosary also has an exorcistic and intercessory power. The patients were randomly assigned to receive distant intercessory healing or none at all.