Unlicensed and Off-Label Medication Use in a Neonatal Intensive Care Unit: A Prospective Study - Barr, Joseph; Brenner-Zada, Galit; Heiman, Eli; Pareth, Gideon; Bulkowstein, Mordechai; Greenberg, Revital; Berkovitch, Matitiahu (American Journal of Perinatology, 2002)