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