Myocardial and coronary sinus purines as indicators of pig heart energy metabolism during reperfusion after extracorporeal circulation. - Safranow, K.; Rzeuski, R.; Listewnik, M. J.; Jakubowska, K.; Ra, M. E.; Olszewska, M.; Chlubek, D. (Acta Physiologica Scandinavica, 2005)