Serum level of gamma-glutamyl transferase as a biomarker for predicting stenosis severity in patients with coronary artery disease oleh Siavash Arasteh, Mohsen Moohebati, Amir Avan, Habibollah Esmaeili, Hamideh Ghazizadeh, Adeleh Mahdizadeh, Farzad Rahmani, Elham Mohamamdazade, Gordon A. Ferns, Mohammad Reza Parizadeh, Majid Ghayour-Mobarhan