Dyfyniad APA

Mark A Giembycz & Stephen K Field. (2010). Roflumilast: First phosphodiesterase 4 inhibitor approved for treatment of COPD. Dove Medical Press.

Dyfyniad Arddull Chicago

Mark A Giembycz and Stephen K Field. Roflumilast: First Phosphodiesterase 4 Inhibitor Approved for Treatment of COPD. Dove Medical Press, 2010.

Dyfyniad MLA

Mark A Giembycz and Stephen K Field. Roflumilast: First Phosphodiesterase 4 Inhibitor Approved for Treatment of COPD. Dove Medical Press, 2010.

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