Bockting, C. L. H., Klein, N. S., Elgersma, H. J., van Rijsbergen, G. D., Slofstra, C., Ormel, J., Buskens, E., Dekker, J., de Jong, P. J., Nolen, W. A., Schene, A. H., Hollon, S. D., & Burger, H. (2018). effectiveness of preventive cognitive therapy while tapering antidepressants versus maintenance antidepressant treatment versus their combination in prevention of depressive relapse or recurrence (DRD study): a three-group, multicentre, randomised controlled trial. Lancet, 5, 401–410. http://access.bl.uk/ark:/81055/vdc_100060492415.0x000005