
Keywords: bLF, Bovine lactoferrin; H2B, H2-blockers; ICU, Intensive care unit; LGG, Lactobacillus rhamnosus GG; LOS, Late-onset sepsis; NEC, Necrotizing enterocolitis; NICU, Neonatal intensive care unit; RCT, Randomized controlled trial; ROP, Retinopathy of prematu