APA (7th ed.) Citation

Gkini, E., Adams, R. L., Spittle, D., Ellis, P., Allsopp, K., Saleem, S., . . . Turner, A. M. Sputum colour charts to guide antibiotic self-treatment of acute exacerbation of chronic obstructive pulmonary disease: The Colour-COPD RCT. NIHR Journals Library.

Chicago Style (17th ed.) Citation

Gkini, Eleni, et al. Sputum Colour Charts to Guide Antibiotic Self-treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease: The Colour-COPD RCT. NIHR Journals Library.

MLA (9th ed.) Citation

Gkini, Eleni, et al. Sputum Colour Charts to Guide Antibiotic Self-treatment of Acute Exacerbation of Chronic Obstructive Pulmonary Disease: The Colour-COPD RCT. NIHR Journals Library.

Warning: These citations may not always be 100% accurate.