Efficacy of a Multicomponent Positive Psychology Self-Help Intervention: Study Protocol of a Randomized Controlled Trial.
Marijke Schotanus-DijkstraConstance Hélene Christine DrossaertMarcel E PieterseJan A WalburgErnst Thomas BohlmeijerPublished in: JMIR research protocols (2015)
The Netherlands Trial Register NTR4297; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=4297 (Archived by WebCite at http://webcitation.org/6Uwb5SUUM).