De Jesús-Berrios, Yohana, Ruth A. Santos-Rodríguez, Donald Dexter, Mariely Nieves-Plaza, and Cruz M. Nazario. 2015. “Usefulness of the Culturally Adapted Oxygen-Cost Diagram in the Assessment of Dyspnea in Puerto Rico”. Puerto Rico Health Sciences Journal 34 (1). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/996.