title: Response from John Posner, author of commentary.
authors.affiliation: School of Biomedical Sciences, King's College London, London, UK.
authors.forename: John
authors.initials: J
authors.lastname: Posner
mesh_terms: D000925:Anticoagulants / Q000008:administration & dosage*; D001562:Benzimidazoles / Q000008:administration & dosage*; D006801:Humans; D017410:Practice Guidelines as Topic; D011725:Pyridines / Q000008:administration & dosage*
chemical_list: D000925:Anticoagulants; D001562:Benzimidazoles; D011725:Pyridines