Nih-sponsored national surveys found that 25 percent of adults in the united states had used some form of "complementary and alternative medicine." when prayer was included as a complementary form of medicine the proportion rose to

While complementary medicine is used together with conventional medicine, alternative medicine is used instead of conventional medicine. CAM - Complementary and Alternative Medicine is still questionable from the scientific point of view. The 2007 National Health Interview Survey found that 38 percent of U.S. adults reported using CAM in the previous year. When prayer was included as a complementary form of medicine the proportion rose to more than 62 percent. 

The correct answer is "  it was believed that the dispute emerged in 632 just after the death of the prophet muhammad."