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.
Active release technique (ART) is a soft tissue system/movement-based technique developed and patented by P. Michael Leahy. It claims to treat problems with muscles, tendons, ligaments, fascia and nerves. There is little evidence to support its efficacy. The technique is advocated largely by chiropractors.