Jinzhou Medical University, Jinzhou, 121000, Liaoning Province, China
Shujie Liu
Shandong First Medical University, Jinan, 250117, Shandong Province, China
Tianfeng Liu
Corresponding author. Department of Gynecology, Linyi People's Hospital, Linyi, 276000, Shandong Province, China.; Department of Gynecology, Linyi People's Hospital, Linyi, 276000, Shandong Province, China
Jingping Chen
Binzhou Medical College, Binzhou, 256600, Shandong Province, China
