Halpin, D. M., Miravitlles, M., Metzdorf, N., & Celli, B. (2017). Impact and prevention of severe exacerbations of COPD: A review of the evidence. Int J Chron Obstruct Pulmon Dis.
Chicago-stil citatHalpin, David MG, Marc Miravitlles, Norbert Metzdorf, och Bartolomé Celli. "Impact and Prevention of Severe Exacerbations of COPD: A Review of the Evidence." Int J Chron Obstruct Pulmon Dis 2017.
MLA-referensHalpin, David MG, Marc Miravitlles, Norbert Metzdorf, och Bartolomé Celli. "Impact and Prevention of Severe Exacerbations of COPD: A Review of the Evidence." Int J Chron Obstruct Pulmon Dis 2017.
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