Quadratus lumborum block and transversus abdominis plane block in laparoscopic nephrectomy: a meta-analysis

For each domain a judgment of either ‘no concerns’, ‘some concerns’ or ‘major concerns’ are established. Finally,a summary of all domain judgments is made at the end as having either ‘very low’, ‘low’, ‘moderate’ or ‘high’confidence rating (Supplementary Table 1)