Clinical association of body symptoms and primary dysmenorrhea among young and middle-aged women: an observational study - Tseng, Tzyy-Guey; Kuan, Che-Yen; Lo, Yun-Ping; Chuang, Yun-Shiuan; Lee, Chun-Ying; Lin, Yi-Ting; Shyu, Ing-Luen; Wu, Ming-Tsang; Tai, Chi-Jung (Frontiers in Medicine, 2025)