RT Journal Article SR Electronic T1 Efficacy and safety of long-term low molecular weight heparin in patients with antiphospholipid syndrome JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 1652 OP 1654 DO 10.1136/ard.2011.150268 VO 70 IS 9 A1 José Antonio Vargas-Hitos A1 Oier Ateka-Barrutia A1 Shirish Sangle A1 Munther A Khamashta YR 2011 UL http://ard.bmj.com/content/70/9/1652.abstract AB Markup server — Error Error There was a problem handling your request. Please try again in a few minutes, or contact us if you continue to experience this problem.