Economic impact of COPD : Empirical and model-based studies on the cost-effectiveness of treatment options / Elizabeth Jantina Ike Hoogendoorn-LipsEconomic impact of COPD : Empirical and model-based studies on the cost-effectiveness of treatment options / Elizabeth Jantina Ike Hoogendoorn-LipsQuickscan interventies voor sportblessurepreventie / M. Hoogendoorn et al.