Expiratory flow-limitation and heliox breathing in resting and exercising COPD patients

Edgardo D'Angelo1, Pierachille Santus, Marco F Civitillo

  • 1Dipartimento di Fisiologia Umana, Università degli Studi di Milano, via Mangiagalli 32, 20133 Milan, Italy. edgardo.dangelo@unimi.it

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