Towards sustainable mental health promotion: trial-based health-economic evaluation of a positive psychology intervention versus usual care.
Marijke Schotanus-DijkstraConstance H C DrossaertMarcel E PieterseJan A WalburgErnst T BohlmeijerFilip SmitPublished in: BMC psychiatry (2018)
The Netherlands National Trial Register NTR4297. Registered on 29 November 2013. The NTR is part of the WHO Primary Registries.