Langendijk, Johannes A., Neil K. Aaronson, Guul P. M. ten Velde, Jos M. A. de Jong, Martin J. Muller, and Emiel F. M. Wouters. 2000. “Pretreatment Quality of Life of Inoperable Non-Small Cell Lung Cancer Patients Referred for Primary Radiotherapy”. Acta Oncologica 39 (8):949-58. https://doi.org/10.1080/02841860050215936.