1 Department of Ultrasonography, Shengli Clinical College of Fujian Medical University, Fuzhou No.7 Hospital, Fuzhou, China.
2 Department of Ultrasonography, Shengli Clinical college of Fujian Medical University, Fujian Provincial Hospital, 134 East Street, Gu Lou District, Fuzhou, Fujian Province, China.
3 Department of Ultrasonography, Shengli Clinical College of Fujian Medical University, Fujian Medical University Affiliated Fuzhou First Hospital, Fuzhou, China.