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.
Artist. An artist is a person engaged in one or more of any of a broad spectrum of activities related to creating art, practicing the arts, and/or demonstrating an art. The common usage in both everyday speech and academic discourse is a practitioner in the visual arts only.