Left Ventricular Function in Patients with Polycystic Ovary Syndrome: A Doppler Echocardiographic Study - Tekin, A.; Tekin, G.; Çölkesen, Y.; Kılıçdağ, E. B.; Başhan, İ; Sezgin, A. T.; Müderrisoğlu, H. (Experimental and Clinical Endocrinology & Diabetes, 2009)