Smid, D. E., Wilke, S., Jones, P. W., Muris, J. W. M., Wouters, E. F. M., Franssen, F. M. E., & Spruit, M. A. (2015). Impact of cardiovascular comorbidities on COPD Assessment Test (CAT) and its responsiveness to pulmonary rehabilitation in patients with moderate to very severe COPD: Protocol of the Chance study. BMJ Open.

Smid, Dionne E., Sarah Wilke, Paul W. Jones, Jean W M. Muris, Emiel F M. Wouters, Frits M E. Franssen, and Martijn A. Spruit. "Impact of Cardiovascular Comorbidities On COPD Assessment Test (CAT) and Its Responsiveness to Pulmonary Rehabilitation in Patients With Moderate to Very Severe COPD: Protocol of the Chance Study." BMJ Open 2015.

Smid, Dionne E., et al. "Impact of Cardiovascular Comorbidities On COPD Assessment Test (CAT) and Its Responsiveness to Pulmonary Rehabilitation in Patients With Moderate to Very Severe COPD: Protocol of the Chance Study." BMJ Open 2015.