Ponce-Monter, Héctor A., Mario I. Ortiz, Eduardo Fernández-Martínez, Luis E. Soria-Jasso, Gloria A. Téllez-Téllez, Martha Martínez-Corona, Patricia González-Ramírez, Luis C. Romero-Quezada, and Humberto A. Veras-Godoy. “Prevalence, Impact and Treatment of Primary Dysmenorrhea in Workers of an Academic and Research Institute”. Mexican Journal of Medical Research ICSA 1, no. 2 (July 5, 2013). Accessed September 17, 2021. https://repository.uaeh.edu.mx/revistas/index.php/MJMR/article/view/1779.