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Stefan, Mihaela S., Brian H. Nathanson, Thomas L. Higgins, Jay S. Steingrub, Tara Lagu, Michael B. Rothberg, and Peter K. Lindenauer. "Comparative Effectiveness of Noninvasive and Invasive Ventilation in Critically Ill Patients With Acute Exacerbation of COPD." Crit Care Med 2015.

Stefan, Mihaela S., et al. "Comparative Effectiveness of Noninvasive and Invasive Ventilation in Critically Ill Patients With Acute Exacerbation of COPD." Crit Care Med 2015.