Chen, Huan Vitamin D binding protein gene polymorphisms and chronic obstructive pulmonary disease: a meta-analysis. [electronic resource] - Journal of thoracic disease Aug 2015 - 1423-40 p. digital Publication Type: Journal Article ISSN: 2072-1439 Standard No.: 10.3978/j.issn.2072-1439.2015.08.16 doi