CJCP     2021 23 (3):  242-247    ISSN: 1008-8830  CN: 43-1301/R Perinatal conditions of late preterm twins versus early term twins ZHANG Yi-Min, SHAO Shu-Ming, ZHANG Xiao-Rui, LIU Jie, ZENG Chao-Mei Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China Received: 2020-11-23  Revised: 2020-12-30  Online: null Supporting info