Additional file 1 of Intra-arterial anaesthetics for pain control in arterial embolisation procedures: a systematic review and meta-analysis

Additional file 1: Appendix 1. Search strategy used for each database. Performed on 10th August. Appendix 2. Formula used to calculate standard deviation from confidence intervals or standard errors. Appendix 3. Formulae used to combine mean, standard deviation and sample sizes of studies containing 2 treatment arms.