Advancing the Science and Application of Implementation Science to Promote Health Equity: Commentary on the Symposium.

There has been an increasing focus on making health equity a more explicit and foundational aspect of the research being conducted in public health and implementation science. This commentary provides an overview of five reviews in this Annual Review of Public Health symposium on Implementation Science and Health Equity. These articles reflect on and advance the application of core implementation science principles and concepts, with a focus on promoting health equity across a diverse range of public health and health care settings. Taken together, the symposium articles highlight critical conceptual, methodological, and empirical advances in the study designs, frameworks, and approaches that can help address equity considerations in the use of implementation science in both domestic and global contexts. Finally, this commentary highlights how work featured in this symposium can help inform future directions for rapidly taking public health to scale, particularly among systemically marginalized populations and communities.