Regional disparities in insurance-covered cognitive behavioural therapy in Japan: a nationwide cross-sectional study using National Database Open Data, 2015-2023
BMJ Open. 2026 Apr 13;16(4):e115722. doi: 10.1136/bmjopen-2025-115722. ABSTRACT OBJECTIVES: Cognitive behavioural therapy (CBT) is recommended as a first-line treatment for depression and anxiety disorders, but …