1. Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
2. Department of Systems Biology, MD Anderson Cancer Center, Houston, Texas, USA
3. Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China, Department of General Surgery, Jinan Hospital, Jinan, Shandong, China
4. Division of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA