| GA | Gestational age |
| GRADE | Grading of recommendations, assessment, development and evaluations |
| LOS | Late-onset sepsis |
| NEC | Necrotizing enterocolitis |
| RoB | Risk of bias |
| GA | Gestational age |
| GRADE | Grading of recommendations, assessment, development and evaluations |
| LOS | Late-onset sepsis |
| NEC | Necrotizing enterocolitis |
| RoB | Risk of bias |