Ethics statement from Yang et al. (2022), a meta-analysis, with putative markup of some key elements. Color code as above. The language is more generic overall than in Fig. 1.

  Part of: Hegde SN, Garg A, Murray-Rust P, Mietchen D (2022) Mining the literature for ethics statements: A step towards standardizing research ethics. Research Ideas and Outcomes 8: e94685.