Totally 560 full term neonates ( male 295 , female 265 ) were randomized into 7 groups : placebo group ( plain water ) , 10 % glucose , 25 % glucose , 50 % glucose , 12 % sucrose , 24 % sucrose and 30 % sucrose groups.In each group , 2 ml corresponding oral solutions were administered through a syringe by dripping into the neonate 's mouth 2 minute before heel lance .