North vs south differences in acute peptic ulcer hemorrhage in Croatia: hospitalization incidence trends, clinical features, and 30-day case fatality

Ljubičić N, Pavić T, Budimir I, Puljiz Ž, Bišćanin A, Bratanić A, Nikolić M, Hrabar D, Troskot B. North vs south differences in acute peptic ulcer hemorrhage in Croatia: hospitalization incidence trends, clinical features, and 30-day case fatality. Croat Med J. 2014; 55(6): 647–54.