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. The definition of an exhibition is a large public showing or display of art, products or athletic skills. 1  An example of an exhibition is an artist showing his work for two nights at a gallery.2  An example of an exhibition is a group of gymnasts showing their skills to the public. An example of an exhibition is an artist showing his work for two nights at a gallery. 2  An example of an exhibition is a group of gymnasts showing their skills to the public.