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1 Relationship between serum 25-hydroxyvitamin D and chronic obstructive pulmonary disease in males in the fifth Korean national health and nutrition examination survey
In Kyung Jung
J Nutr Health.2014;47(5):321-329.   Published online 2014 October 31     DOI: http://dx.doi.org/10.4163/jnh.2014.47.5.321
      
2 The Complementary Role of FEV6 in Bronchodilator Reversibility Test for the Old Age
Sae Hee Kim, Yang Deok Lee, Jung Yun Lee, Yong Seon Cho, Dong Jip Na, Min Soo Han
Tuberc Respir Dis.2006;61(3):227-232.   Published online 2006 September 30     DOI: http://dx.doi.org/10.4046/trd.2006.61.3.227
      
3 Normal Predictive Values of Spirometry in Korean Population
Jung Keun Choi, Domyung Paek, Jeoung Oh Lee
Tuberc Respir Dis.2005;58(3):230-242.   Published online 2005 March 31     DOI: http://dx.doi.org/10.4046/trd.2005.58.3.230
      

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