1263813 MPG mean pressure gradient 142 1263809 MPG mean plasma glucose 18 1263973 mPG mature-PG 2 1263972 mPG mean aortic pressure gradient 2 1263974 mPG modified Pfirrmann grade 2 1263976 mPG Malignant PG 1 1263975 mPG Mean transaortic valvular pressure gradient 1 1263971 mPG mineralized PG 1 1263970 mPG mini-punch grafting 1 1263977 mPG modified PG 1