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.
Art history is the study of objects of art in their historical development and stylistic contexts, i.e. genre, design, format, and style. This includes the major arts of painting, sculpture, and architecture as well as the minor arts of ceramics, furniture, and other decorative objects. As a term, art history (also history of art) encompasses several methods of studying the visual arts; in common usage referring to works of art and architecture.