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. vanity gallery is an exhibition space of works in a gallery that charges the artist for use of the for space. Temporary museum exhibitions typically display items from the museum's own collection on a particular period, theme or topic, supplemented by loans from other collections, mostly those of other museums.