CJCP     2023 25 (10):  1001-1007    ISSN: 1008-8830  CN: 43-1301/R Risk factors and prognosis of hypotension within 72 hours after birth in extremely preterm infants LIU Tai-Xiang, SHI Li-Ping Department of Neonatal Intensive Care Unit, Children's Hospital, Zhejiang University School of Medicine/National Clinical Research Center for Child Health, Hangzhou 310052, China Received: 2023-04-07  Revised: null  Online: null Supporting info null