AUTHOR=Shishkin Sergey , Sheiman Igor , Potapchik Elena , Vlassov Vasily , Sazhina Svetlana TITLE=The impact of centralization on structural changes in healthcare: when it works JOURNAL=Frontiers in Health Services VOLUME=5 YEAR=2025 URL=https://www.frontiersin.org/journals/health-services/articles/10.3389/frhs.2025.1484225 DOI=10.3389/frhs.2025.1484225 ISSN=2813-0146