Objective To study the relationship between the nutrition intake and weight growth velocity(WGV)of very-low-birth-weight(VLBW)infants during hospitalization. Methods A retrospective investigation was conducted in hospitalized VLBW infants in Shenzhen Women and Children's Hospital from 2011 to 2012,and the clinical characters and nutritional data were collected.The infants were divided into 3groups according to the WGV,including low WGV group,medial WGV group and high WGV group.Then,the nutritional status we...