%0 Journal Article %T Can an observational case-controlled study assess survival benefits in a group of patients undergoing CABG or medical treatment sufficiently? %A Norgaz, T. %A Görgülü, Ş. %J The Anatolian Journal of Cardiology %D 2012 %V 12 %P 450-451 %R 10.5152/akd.2012.137