1Department of Pathology of the Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou 213003, China
2Department of Pathology of the First Hospital of Soochow University, Suzhou 215006, China
3Department of Pathology of the Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing 210029, China
4Department of Pathology of the Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
5Quality Healthcare Consultant, Lexington, MA 02421, USA
6Department of Pathology and Laboratory Medicine of Veterans Affairs Boston Healthcare System, Harvard Medical School and Brigham and Women's Hospital, West Roxbury, MA 02132, USA