एपीए उद्धरण

Calverley, P. M., Martinez, F. J., Fabbri, L. M., Goehring, U., & Rabe, K. F. (2012). Does roflumilast decrease exacerbations in severe COPD patients not controlled by inhaled combination therapy? the REACT study protocol. Dove Medical Press.

शिकागो स्टाइल उद्धरण

Calverley, Peter MA, Fernando J. Martinez, Leonardo M. Fabbri, Udo-Michael Goehring, और Klaus F. Rabe. Does Roflumilast Decrease Exacerbations in Severe COPD Patients Not Controlled By Inhaled Combination Therapy? the REACT Study Protocol. Dove Medical Press, 2012.

एमएलए उद्धरण

Calverley, Peter MA, et al. Does Roflumilast Decrease Exacerbations in Severe COPD Patients Not Controlled By Inhaled Combination Therapy? the REACT Study Protocol. Dove Medical Press, 2012.