Complex sentence: A 2010 overview of systematic reviews found that moxibustion was effective for several conditions but the primary studies were of poor quality, so there persists ample uncertainty, which limits the conclusiveness of their findings.
Split into simpler sentences: A 2010 overview of systematic reviews found that moxibustion was effective for several conditions. The same review found that the primary studies were of poor quality, so there persists ample uncertainty, which limits the conclusiveness of their findings.