Breast Feeding 1 Cost-effectiveness analysis 1 Economic evaluation 1 Female 1 Humans 1 Infant 1 Infant, Newborn 1 Infant, Very Low Birth Weight 1 Intensive Care Units, Neonatal 1 Maternal breast milk 1 Milk, Human 1 Mothers 1 Mother’s own milk 1 Neonatal intensive care unit 1 Randomized Controlled Trials as Topic 1 Very low birth weight 1 Very preterm breast feeding 1 breast milk 1 female 1 human 1 infant 1 mother 1 neonatal intensive care unit 1 newborn 1 procedures 1 randomized controlled trial (topic) 1 very low birth weight 1