Decades of Research in the Chronic Disease Self-Management Program: A Systematic Review and Meta-Analysis of Long-Term Health Outcomes Across Countries. - Olszewski, Robert; Watros, Klaudia; Mańczak, Małgorzata; Brzeziński, Jakub; Owoc, Jakub; Jeziorski, Krzysztof (American Journal of Public Health, 2026)