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2. Vitamin K supplementation for infants receiving milk substitute infant formulas and for those with rate malabsorption;American Academy of Pediatrics;Pediatrics,1983
3. Evidence against vitamin K deficiency in normal neonates;Malia;Thromb Haemost,1980
4. Normotest;Owren;Farmakoterapi,1969
5. Quantitative estimation of circulating PIVKA-II by enzyme-linked immunosorbent assay using monoclonal antibody;Motohara;Acta Pediatr Jpn,1983