A Cochrane Review found limited evidence for the use of moxibustion in correcting breech presentation of babies, and called for more experimental trials.[12] Moxibustion has also been studied for the treatment of pain,[13] cancer,[14] stroke,[15] ulcerative colitis,[16] constipation,[17] and hypertension.[18] Systematic reviews have found that these studies are of low quality and positive findings could be due to publication bias.[19]