Ultrasonographic identification of pelvic floor myofascial trigger points and their correlation with clinical symptoms in patients with pelvic floor myofascial pain

Hai-Ying Gong, Hong-Yun Zhang, Ting-Ting Cui, Gong-Ning Wang, Min-Yan Wang, Zhuo-Dan Gong, Ruo-Dan Ding, Jiang Zhu