Psychiatric Nursing/*methods
Pieper, M. J. C., van der Steen, J. T., Francke, A. L., Scherder, E. J. A., Twisk, J. W. R., Achterberg, W. P. 2018. Effects on pain of a stepwise multidisciplinary intervention (STA OP!) that targets pain and behavior in advanced dementia: A cluster randomized controlled trial. Palliat Med. 32 (3) 682-692.