Prevalence and underdiagnosis of chronic obstructive pulmonary disease among patients at risk in primary care -- Hill et al. 182 (7): 673 Data Supplement - Online Appendix -- Canadian Medical Association Journal

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All editorial matter in CMAJ represents the opinions of the authors and not necessarily those of the Canadian Medical Association. Prevalence and underdiagnosis of chronic obstructive pulmonary disease among patients at risk in primary care
CMAJ Hill et al. 182: 673

Online Appendix

Files in this Data Supplement:

Appendix 1: Questions asked of participants aged 40 years and older with known risk factors for chronic obstructive pulmonary disease (COPD) who visited a primary care practitioner for any reason