Ceiling effect of Postconditioning and Atrial Natriuretic Peptide in Cardioprotection against Ischemia Reperfusion Injury in Ovariectomized rat hearts oleh Vishal Kumar Vishwakarma, Prabhat Kumar Upadhyay, Jeetendra Kumar Gupta, Ritesh Kumar Srivasata, Tarique Mahmood Ansari