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1 Measurement of Ventilatory Threshold in the Patients with Chronic Airway Obstruction
Kye Young Lee, Young Koo Jee, Keun Yeol Kim
Tuberc Respir Dis.1997;44(2):309-320.   Published online 2016 March 14     DOI: http://dx.doi.org/10.4046/trd.1997.44.2.309
      

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