3556305 MIDCAB minimally invasive direct coronary artery bypass 371 3556304 MIDCAB minimally invasive direct CABG 5 3556301 MIDCAB Meanwhile, development of minimally invasive coronary artery bypass surgery 1 3556306 MIDCAB mid-term outcome following minimally invasive coronary artery bypass grafting 1 3556303 MIDCAB minimally invasive coronary artery bypass procedures 1 3556302 MIDCAB myocardium during minimally invasive CABG 1