title: [Vitamin K group].
authors.affiliation: Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Shirahata
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D014812:Vitamin K / Q000097:blood*
chemical_list: D014812:Vitamin K