1. State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050 Beijing, China
2. Department of Pathology and Thoracic Surgery, Linzhou Esophageal Cancer Hospital, 456500 Linzhou, China
3. Centre for Imaging & Systems Biology, Minzu University of China, 100081 Beijing, China