Mahdi, S. A.; Mohammed, N. H.; AL-Saffar, H. B. The Effect of Valsalva Maneuver on Diastolic Filling Indices in Patients With Essential Hypertension. J Fac Med Baghdad 2010, 52 (1), 13-18. https://doi.org/10.32007/jfacmedbagdad.5211038.