Pavithra B; Sangeetha A; Anuja A V; Samuel Sundar Doss; Thanalakshmi J; Vijayalakshmi B. Prevalence of Menstrual Symptoms and Primary Dysmenorrhea Among Medical Undergraduates in South Indian Population. Int. J. Res. Pharm. Sci. 2020, 11, 1348-1351.