Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KATANODA K,An official American Thoracic Society public policy statement : Novel risk factors and the global burden of chronic obstructive pulmonary disease,Am J Respir Crit Care Med.,,,2010,182,,693-718,https://cir.nii.ac.jp/crid/1571135650796516864,