[1] Nantong Univ, Canc Hosp, Dept Ultrasound, Nantong 226361, Peoples R China
[2] Nantong Univ, Affiliated Hosp 1, Dept Ultrasound, Nantong 226001, Peoples R China
[3] Nantong Univ, Affiliated Hosp 2, Dept Radiol, Nantong 226001, Jiangsu, Peoples R China
[4] Nantong Univ, Canc Hosp, Dept Oncol, Nantong 226361, Peoples R China
[5] Nantong Univ, Canc Hosp, Dept Pathol, Nantong 226361, Peoples R China