Houben-Wilke, S., Janssen, D. J. A., Franssen, F. M. E., Vanfleteren, L. E. G. W., Wouters, E. F. M., & Spruit, M. A. (2018). Contribution of individual COPD assessment test (CAT) items to CAT total score and effects of pulmonary rehabilitation on CAT scores. Health Qual Life Outcomes.

Houben-Wilke, Sarah, Daisy J. A. Janssen, Frits M. E. Franssen, Lowie E. G. W. Vanfleteren, Emiel F. M. Wouters, and Martijn A. Spruit. "Contribution of Individual COPD Assessment Test (CAT) Items to CAT Total Score and Effects of Pulmonary Rehabilitation On CAT Scores." Health Qual Life Outcomes 2018.

Houben-Wilke, Sarah, et al. "Contribution of Individual COPD Assessment Test (CAT) Items to CAT Total Score and Effects of Pulmonary Rehabilitation On CAT Scores." Health Qual Life Outcomes 2018.