Psychologie en Gezondheid, 39(5), 282-291. Springer Science + Business Media Verkaik, R, Busch, M, Koeneman, T, van de Berg, R, Spreeuwenberg, P M M & Francke, A L 2011, ' Geleide visualisatie bij fibromyalgie: effecten op pijn, zelfeffectiviteit en functionele status ', Psychologie en Gezondheid, vol. 39, no. 5, pp. 282-291 . https://doi.org/10.1007/s12483-011-0055-z
van den Berg, R, Eliel, M R & Meijman, F J 2011, ' Palliative and terminal care at home as portrayed in Dutch newspapers in 2009 compared to 2000. ', The European Journal of General Practice, vol. 17, no. 1, pp. 14-19 . https://doi.org/10.3109/13814788.2010.549224 The European Journal of General Practice, 17(1), 14-19