Yu, T., Riet, G. t., Puhan, M. A., & Frei, A. (2017). Physical activity and risk of comorbidities in patients with chronic obstructive pulmonary disease: A cohort study. Nature Portfolio.
Chicago Style (17th ed.) CitationYu, Tsung, Gerben ter Riet, Milo A. Puhan, and Anja Frei. Physical Activity and Risk of Comorbidities in Patients with Chronic Obstructive Pulmonary Disease: A Cohort Study. Nature Portfolio, 2017.
MLA (8th ed.) CitationYu, Tsung, et al. Physical Activity and Risk of Comorbidities in Patients with Chronic Obstructive Pulmonary Disease: A Cohort Study. Nature Portfolio, 2017.
Warning: These citations may not always be 100% accurate.