Ustun, Nilgun Left ventricular systolic dysfunction in patients with ankylosing spondylitis without clinically overt cardiovascular disease by speckle tracking echocardiography. [electronic resource] - Rheumatology international Apr 2015 - 607-11 p. digital Publication Type: Journal Article ISSN: 1437-160X Standard No.: 10.1007/s00296-014-3130-z doi Subjects--Topical Terms: AdultCross-Sectional StudiesEchocardiography--methodsFemaleHeart Ventricles--diagnostic imagingHumansMaleMiddle AgedSpondylitis, Ankylosing--diagnostic imagingVentricular Dysfunction, Left--diagnostic imaging