Spontaneous intestinal perforation among very preterm infants in China: a multicenter cohort study

Weiying Mao, Siyuan Jiang, Chun Shen, Haitao Zhu, Yanchen Wang, Lingkong Zeng, Hongying Mi, Yu Long, Ziwei Li, Xinyue Gu, Yun Cao, Shoo K. Lee, Rong Zhang; on behalf of the Chinese Neonatal Network