Hubungan Polimorfisme Gly972Arg Gen Insulin Receptor Substrate 1 (IRS1) dengan TIMI Flow Pasca Intervensi Koroner Perkutan Primer (IKPP) dan Jumlah Kelainan Pembuluh Koroner pada Infark Miokard Akut Elevasi Segmen ST (IMA-EST) = The Association between Gly972Arg Polymorphism of Insulin Receptor Substance 1 Gene and TIMI Flow After Primary Percutaneous Coronary Intervention and Coronary Multivessel Involvement in Patients with Acute ST-Segment Elevation Myocardial Infarction