Subject(s)

Vitamin K Deficiency Bleeding/prevention & control , Vitamin K/administration & dosage , Administration, Oral , Adult , Breast Feeding , Fetal Blood/metabolism , Humans , Infant, Newborn , Infusions, Parenteral , Injections, Intramuscular , Prospective Studies , Prothrombin/metabolism , Reference Values , Vitamin K/blood , Vitamin K Deficiency/blood , Vitamin K Deficiency/prevention & control