Mohamed, A. L.; Yong, J; Masiyati, J; Lim, L; Tee, S. C. (2004). "The prevalence of diastolic dysfunction in patients with hypertension referred for echocardiographic assessment of left ventricular function". The Malaysian Journal of Medical Sciences. 11 (1). ss. 66-74. PMC3438153 $2. PMID22977362.