title: Serum vitamin K1 concentrations after oral administration of vitamin K1 in low birth weight infants.
mesh_terms: D000284:Administration, Oral; D002851:Chromatography, High Pressure Liquid; D005167:Factor VII / Q000032:analysis; D005170:Factor X / Q000032:analysis; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011516:Prothrombin / Q000032:analysis; D013997:Time Factors; D010837:Vitamin K 1 / Q000008:administration & dosage / Q000097:blood*
chemical_list: D010837:Vitamin K 1; D005167:Factor VII; D011516:Prothrombin; D005170:Factor X