(Q39974161)
Statements
Development and validation of the Chronic Obstructive Pulmonary Disease Assessment Questionnaire (COPD-AQ) (English)
Fernando J Martinez
William C Bailey
James F Donohue
Gary T Ferguson
Joseph D Zibrak
Amir Sharafkhaneh
Philip Marcus
Kathleen Rosa
Elisabeth C Piault
Nicola A Hanania
1 September 2009