Global implementation research and applications.This journal is a peer-reviewed forum for the development, integration and exchange of implementation knowledge and experience. As the official journal of the Global Implementation Society, Global Implementation Research and Applications (GIRA) seeks rigorous studies, perspectives and experiences, commentaries and other types of submissions from researchers, policy maker, and stakeholders that may focus upon, but are not limited to: Context analysis, readiness, and capacity development; Development, application, and testing of implementation tools and measures; Implementation theory, frameworks and models; Implementation-focused planning, design, and evaluation; Implementation policies, strategies, and processes; Innovation fidelity, adaptation, feasibility, replication, sustainability, and de-implementation; Policy implementation, systems intervention, scale up, and sustainment.