Long-Term Oxygen Therapy 24 vs 15 h/day and Mortality in Chronic Obstructive Pulmonary Disease

• Zainab Ahmadi ,

  * E-mail: zai.ahmd@gmail.com

  Affiliation Department of Clinical Sciences, Division of Respiratory Medicine & Allergology, Lund University, Lund, Sweden

  http://orcid.org/0000-0003-1434-5715

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• Josefin Sundh,

  Affiliation Department of Respiratory Medicine, School of Medical Sciences, Örebro University, Örebro, Sweden

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• Anna Bornefalk-Hermansson,

  Affiliation Department of Statistics, Uppsala University, Uppsala, Sweden

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• Magnus Ekström

  Affiliation Department of Clinical Sciences, Division of Respiratory Medicine & Allergology, Lund University, Lund, Sweden

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