Rationale This study is part of a larger multi-method project to develop a questionnaire for identifying undiagnosed cases of chronic obstructive pulmonary disease (COPD) in primary care settings with specific interest in the detection of patients with moderate to severe airway Rabbit polyclonal to MET. obstruction or risk of exacerbation. COPD Foundation Peak Flow Study… Continue reading Rationale This study is part of a larger multi-method project to