Citace podle APA

Yu, T., ter Riet, G., Puhan, M. A., & Frei, A. (2017). Physical activity and risk of comorbidities in patients with chronic obstructive pulmonary disease: A cohort study. NPJ Prim Care Respir Med.

Styl Chicago

Yu, Tsung, Gerben ter Riet, Milo A. Puhan, a Anja Frei. "Physical Activity and Risk of Comorbidities in Patients With Chronic Obstructive Pulmonary Disease: A Cohort Study." NPJ Prim Care Respir Med 2017.

Citace podle MLA

Yu, Tsung, Gerben ter Riet, Milo A. Puhan, a Anja Frei. "Physical Activity and Risk of Comorbidities in Patients With Chronic Obstructive Pulmonary Disease: A Cohort Study." NPJ Prim Care Respir Med 2017.

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