Lemanska, A., A. Cox, N. F. Kirkby, T. Chen, and S. Faithfull. “Predictive Modelling of Patient Reported Radiotherapy-Related Toxicity by the Application of Symptom Clustering and Autoregression”. International Journal of Statistics in Medical Research, vol. 3, no. 4, Nov. 2014, pp. 412-2, doi:10.6000/1929-6029.2014.03.04.10.