Dual-Chamber and VVI Implantable Defibrillator. A multicenter study comparing dual-chamber (DDDR) implantable cardioverter-defibrillator (ICD) therapy with single-chamber (VVI) ICD therapy in patients with low ejection fractions (40%) and standard ICD indications.
Art is a diverse range of human activities in creating visual, auditory or performing artifacts (artworks), expressing the author's imaginative or technical skill, intended to be appreciated for their beauty or emotional power.
An art exhibition is traditionally the space in which art objects (in the most general sense) meet an audience.The exhibit is universally understood to be for some temporary period unless, as is rarely true, it is stated to be a permanent exhibition.he art works may be presented in museums, art halls, art clubs or private art galleries, or at some place the principal business of which is not the display or sale of art, such as a coffeehouse.