title: Response.
authors.affiliation: Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada; Faculté de Pharmacie, Hamilton, ON, Canada. Electronic address: david.williamson@umontreal.ca.
authors.forename: David R
authors.initials: DR
authors.lastname: Williamson
authors.affiliation: Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada; Faculté de Médecine (Dr Albert), Université de Montréal, Montreal, QC, Canada.
authors.forename: Martin
authors.initials: M
authors.lastname: Albert
authors.affiliation: Departments of Clinical Epidemiology and Biostatistics, Hamilton, ON, Canada.
authors.forename: Diane
authors.initials: D
authors.lastname: Heels-Ansdell
authors.affiliation: Departments of Clinical Epidemiology and Biostatistics, Hamilton, ON, Canada; Department of Medicine, McMaster University, Hamilton, ON, Canada.
authors.forename: Deborah
authors.initials: D
authors.lastname: Cook
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use*; D005260:Female; D006493:Heparin / Q000627:therapeutic use*; D006495:Heparin, Low-Molecular-Weight / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D013921:Thrombocytopenia / Q000453:epidemiology*
chemical_list: D000925:Anticoagulants; D006495:Heparin, Low-Molecular-Weight; D006493:Heparin