Bibliografía: F. Collins, P., A. Yang, I., Chang, Y.-C., & Vaughan, A. (2019). Nutritional support in chronic obstructive pulmonary disease (COPD):an evidence update. Jornalof thoracic Disease, 11, 8. Recuperado el 25 de 02 de 2020, de http://dx.doi.org/10.21037/jtd.2019.10.41