Severe vitamin D deficiency is associated with frequent exacerbations and hospitalization in COPD patients.

MLA

Malinovschi, Andrei, et al. “Severe Vitamin D Deficiency Is Associated with Frequent Exacerbations and Hospitalization in COPD Patients.” Respiratory Research, vol. 15, Dec. 2014, p. 131. EBSCOhost, https://doi.org/10.1186/s12931-014-0131-0.

APA

Malinovschi, A., Masoero, M., Bellocchia, M., Ciuffreda, A., Solidoro, P., Mattei, A., Mercante, L., Heffler, E., Rolla, G., & Bucca, C. (2014). Severe vitamin D deficiency is associated with frequent exacerbations and hospitalization in COPD patients. Respiratory Research, 15, 131. https://doi.org/10.1186/s12931-014-0131-0

Chicago

Malinovschi, Andrei, Monica Masoero, Michela Bellocchia, Antonio Ciuffreda, Paolo Solidoro, Alessio Mattei, Lorena Mercante, Enrico Heffler, Giovanni Rolla, and Caterina Bucca. 2014. “Severe Vitamin D Deficiency Is Associated with Frequent Exacerbations and Hospitalization in COPD Patients.” Respiratory Research 15 (December): 131. doi:10.1186/s12931-014-0131-0.