Heterogeneity of studies in anesthesiology systematic reviews: a meta-epidemiological review and proposal for evidence mapping B. Umberham, R. Hedin, B. Detweiler, L. Kollmorgen, C. Hicks, M. Vassar British Journal of Anaesthesia Volume 119, Issue 5, Pages 874-884 (November 2017) DOI: 10.1093/bja/aex251 Copyright © 2017 The Author(s) Terms and Conditions
Fig 1 PRISMA flowchart of excluded articles. British Journal of Anaesthesia 2017 119, 874-884DOI: (10.1093/bja/aex251) Copyright © 2017 The Author(s) Terms and Conditions
Fig 2 Evidence mapping flow chart. British Journal of Anaesthesia 2017 119, 874-884DOI: (10.1093/bja/aex251) Copyright © 2017 The Author(s) Terms and Conditions