The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

The single largest cause of sick leave in the UK is not the common cold or flu, but back pain. Back pain affects one in three British adults, and is notoriously difficult to treat. Traditionally, doctors in the UK have advised back pain sufferers to do stretching exercises and take painkillers when necessary. But now a new solution: acupuncture has been officially endorsed by the NHS.

（） and its treatments.