Osman, H. A., & El-Houfey, A. A. (2016). Prevalence of Dysmenorrhea and its Impact on Quality of Life among Nursing Students at Assuit University, Egypt. International Journal of Nursing Didactics, 6(2), 23–29. https://doi.org/10.15520/ijnd.2016.vol6.iss2.136.23-29