Postoperative abdominal complications of gastric and colorectal cancer surgeries in China: a multicentered prospective registry-based cohort study

Zhouqiao Wu, Yan Su, Zining Liu, Changqing Jing, Fenglin Liu, Yu Jiang, Zhengrong Li, Jian Zhang, Lu Zang, Hankun Hao, Chao‐Hui Zheng, Yong Li, Lin Fan, Hua Huang, Pin Liang, Bin Wu, Jiaming Zhu, Zhaojian Niu, Linghua Zhu, Song Wu, Jun You, Qi Wang, Ziyu Li, Jiafu Ji