1. Department of Plastic and Reconstructive Surgery, The Ninth People’S Hospital Affiliated To Shanghai Jiao Tong University School Of medicine, Shanghai, 200011, People’s Republic of China
2. Department of Obstetrics and Gynecology, Xijing Hospital Affiliated to the Fourth Military Medical University, Xi’an, 710032, People’s Republic of China
3. Department of Ultrasound in Medicine, The Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, 200233, People’s Republic of China
4. Shanghai Institute of Ultrasound Medicine, The Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, 200233, People’s Republic of China