References
- Howick, J., Bishop, F.L., Heneghan, C., Wolstenholme, J., Stevens, S. et al. (2013) Placebo Use in the United Kingdom: Results from a National Survey of Primary Care Practitioners (http://www.plosone.org/article/info;doi/10.1371/journal.pone.0058247;retrieved9/5/13)
- Lambert, M.J. and Barley, D.E. (2001) ‘Research summary on the therapeutic relationship and psychotherapy outcome’, Psychotherapy: Theory, Research, Practice, Training, 38 (4): 357–61