The major demand for minimally invasive cardiac surgery.
D015906:Angioplasty, Balloon, Coronary / Q000379:methods*; D001026:Coronary Artery Bypass / Q000379:methods*; D017721:Hospital Costs; D006801:Humans; D007902:Length of Stay; D008389:Marketing of Health Services; D019060:Minimally Invasive Surgical Procedures / Q000706:statistics & numerical data*; D018579:Patient Selection; D016896:Treatment Outcome; D014481:United States