[1]National Clinical Research Center for Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin Medical University Cancer institute and hospital Tianjin China;
[2]Tianjin center for disease control and prevention Tianjin Medical University Cancer institute and hospital Tianjin China;
[3]Department of gynecology Cancer TianjinMedical University Cancer institute and hospital Tianjin China;
[4]Evidence-Based Medicine Center School ofBasic Medical Sciences Lanzhou University Lanzhou China;
[5]Department of pancreatic cancer Tianjin MedicalUniversity Cancer institute and hospital Tianjin China;