Ríos, Grissel, Marcos Estrada, Angel M. Mayor, and Luis M. Vilá. “Factors Associated With Tender Point Count in Puerto Ricans With Fibromyalgia Syndrome”. Puerto Rico Health Sciences Journal 33, no. 3 (August 19, 2014). Accessed October 31, 2025. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/939.