Rios, Grissel, and Naydi Pérez-Ríos. “Association of 6-Minute Walk Test (6MWT) Data With Cardiopulmonary Factors in Hispanic Systemic Sclerosis Patients”. Puerto Rico Health Sciences Journal 44, no. 2 (June 9, 2025): 111–115. Accessed October 29, 2025. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/3333.