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    • Treatment of Heterogeneous Emphysema Using the Spiration IBV Valves 

      Springmeyer S.C.; Bolliger C.T.; Waddell T.K.; Gonzalez X.; Wood D.E. (2009)
      Ninety-eight emphysema patients were treated at 13 international sites during a 3-year series of single-arm, open-label studies with the IBV valve and a multi-lobar treatment approach. Fifty six percent of subjects had a ...