Cita APA

Black, P. N., Morgan-Day, A., McMillan, T. E., Poole, P. J., & Young, R. P. (2004). Randomised, controlled trial of N-acetylcysteine for treatment of acute exacerbations of chronic obstructive pulmonary disease [ISRCTN21676344]. BioMed Central.

Chicago Style Citation

Black, Peter N., Althea Morgan-Day, Tracey E. McMillan, Phillippa J. Poole, i Robert P. Young. Randomised, Controlled Trial of N-acetylcysteine for Treatment of Acute Exacerbations of Chronic Obstructive Pulmonary Disease [ISRCTN21676344]. BioMed Central, 2004.

Cita MLA

Black, Peter N., et al. Randomised, Controlled Trial of N-acetylcysteine for Treatment of Acute Exacerbations of Chronic Obstructive Pulmonary Disease [ISRCTN21676344]. BioMed Central, 2004.