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1 Symptom Questionnaire and Laboratory Findings in Subjects with Airflow Limitation: a Nation-wide Survey
Yong Il Hwang, Young Chul Kim, Jae Ho Lee, Min Jong Kang, Dong Gyu Kim, Soo Ock Kim, Tae Won Jang, Min Ki Lee, Youngsoo Ahn, Jee Hong Yoo, Ki-Suck Jung
Tuberc Respir Dis.2007;63(6):480-485.   Published online 2007 December 31     DOI: http://dx.doi.org/10.4046/trd.2007.63.6.480
      

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