AUTHOR=Reed Julie E. , Antonacci Grazia , Armstrong Natalie , Baker G. Ross , Crowe Sonya , Harenstam Karin Pukk , Hargreaves Dougal , Jani Yogini H. , Provost Lloyd , Rejler Martin , Savage Carl , Thor Johan , Williams Sharon , Woodcock Thomas TITLE=What is improvement science, and what makes it different? An outline of the field and its frontiers JOURNAL=Frontiers in Health Services VOLUME=4 YEAR=2025 URL=https://www.frontiersin.org/journals/health-services/articles/10.3389/frhs.2024.1454658 DOI=10.3389/frhs.2024.1454658 ISSN=2813-0146