Vitamin K DeficiencyVitamin K Deficiency BleedingVitamin KVitamin K 1Prothrombin TimeVitamin K 2HypoprothrombinemiasVitamin K 3ProthrombinFolic AcidElder Nutritional Physiological PhenomenaAntifibrinolytic AgentsBlood Coagulation TestsHemorrhagic DisordersPartial Thromboplastin TimeVitamin A1-Carboxyglutamic AcidVitaminsOsteocalcinIntracranial HemorrhagesHemorrhageProtein PrecursorsPotassium DeficiencyVitamin DBlood Coagulation DisordersVitamin EVitamin B 12Vitamin K Epoxide ReductasesVitamin A DeficiencyInfant, NewbornVitamin D DeficiencyFolic Acid DeficiencyPrimary PreventionVitamin B 12 DeficiencyBiological MarkersCathepsin KDietary SupplementsVitamin E DeficiencyVitamin B 6Carbon-Carbon Ligases