Significance of treating newborn infants with vitamin K. II. Prothrombin determinations.
D001724:Birth Weight; D006801:Humans; D007231:Infant, Newborn; D011516:Prothrombin; D014812:Vitamin K / Q000627:therapeutic use*; D006475:Vitamin K Deficiency Bleeding / Q000188:drug therapy*
D014812:Vitamin K; D011516:Prothrombin