Dal Negro, R. W.; Tognella, S.; Bonadiman, L.; Turco, P. Changes in Blood Hemoglobin and Blood Gases PaO2 and PaCO2 in Severe COPD over a Three-Year Telemonitored Program of Long-Term Oxygen Treatment. Multidiscip Respir Med 2012, 7. https://doi.org/10.4081/mrm.2012.602.