The investigator will conduct a prospective, controlled, single-blinded randomized trial. Breastfeeding will be promoted and supported in all mother-infant pairs throughout hospital stay. Enrollment and randomization will occur concurrently at discharge. Mother-infant pairs will be randomized either to receive the written information of the name of a breast milk substitute on the infant's discharge documents (group A) or not to receive it (group B). Randomization to group A or B will be performed by an independent investigator with a random permuted block size of 4.