[1
]
Department of Radiology, The First Affiliated Hospital of Guangxi Medical University,
Nanning, 530021, Guangxi, People's Republic of China.
[2
]
Department of Radiology, Affiliated Hospital of Guilin Medical University, Guilin,
541001, Guangxi, People's Republic of China.
[3
]
Department of Radiology, The First Affiliated Hospital of Guangxi Medical University,
Nanning, 530021, Guangxi, People's Republic of China. huangzhk1205@sina.com.