4Shoven WJ.Lamkert W.et al.Plasma concentrations of vitamin K:and TIVKA-I in bottle-fed and breast-fed infants with and without vitamin K prophy-laxis at birth.Eur J Pediatr.1988.148:139.
5Loughnan PM.McDougall PN.Epidemio logy of late ouset hemorrhagic disense apooled data analysis.Pediatr Child Health.1993.29:17781.
6Cornelisser M.Vonteries R.Schubiger G,et al.Prevention of vitamin K deficiency bleeding:efficacy of different multiple oral dose schedules of vitamin K.Eur J Pediatr.1997.156:126.