APA (7th ed.) Citation

Ekström, M. P., Jogréus, C., & Ström, K. E. (2012). Comorbidity and sex-related differences in mortality in oxygen-dependent chronic obstructive pulmonary disease. Public Library of Science (PLoS).

Chicago Style (17th ed.) Citation

Ekström, Magnus P., Claes Jogréus, and Kerstin E. Ström. Comorbidity and Sex-related Differences in Mortality in Oxygen-dependent Chronic Obstructive Pulmonary Disease. Public Library of Science (PLoS), 2012.

MLA (8th ed.) Citation

Ekström, Magnus P., et al. Comorbidity and Sex-related Differences in Mortality in Oxygen-dependent Chronic Obstructive Pulmonary Disease. Public Library of Science (PLoS), 2012.