Undifferentiated-predominant mixed-type early gastric cancer is more aggressive than pure undifferentiated type: a systematic review and meta-analysis

• Peng Yang,
• Xiaoyong Wang,
• Xiang-Dong Zheng,
• Jun-Mei Wang,
• Wen-Bin Geng

Affiliations

Peng Yang

1 Beijing Center for Disease Prevention and Control & Beijing Research Center for Preventive Medicine, Beijing, China

Xiaoyong Wang

1Department of Gastroenterology, Changzhou No. 2 People’s Hospital, Affiliated with Nanjing Medical University, China

Xiang-Dong Zheng

Department of Gastroenterology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China

Jun-Mei Wang

Department of Gastroenterology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China

Wen-Bin Geng

Department of Gastroenterology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China