Construction and evaluation of a model based on clinical factors and multimodal ultrasound parameters for diagnosing postpartum pelvic floor myofascial pain - Wang, Liling; Wu, Xiuming; Liu, Shunlan; Lyu, Guorong; Lin, Xueke; Huang, Yulian; Liu, Zhonghua; He, Shaozheng (Quantitative Imaging in Medicine and Surgery, 2026)