1 Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China.
2 Department of Radiation Oncology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
3 Department of Pathology, Duke University Medical Center, Durham, NC, USA.
4 Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
5 Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China. wangeh@hotmail.com.