Post-ischemic conditioning in the rat retina is dependent upon ischemia duration and is not additive with ischemic pre-conditioning.
Dreixler JC, Shaikh AR, Alexander M, Savoie B, Roth S. Post-ischemic conditioning in the rat retina is dependent upon ischemia duration and is not additive with ischemic pre-conditioning. Exp Eye Res. 2010 Dec; 91(6):844-52.