1. Appendicitis-a study of incidence, death rates and consumption of hospital resources;Søreide;Postgrad Med J,1984
2. Demographic characteristics and seasonal variations of acute appendicitis;Bal;Ann Ital Chir,2015
3. Defragmenting care;Jencks;Ann Intern Med,2010
4. Appendectomy in Sweden 1989 ‐ 1993 assessed by the inpatient registry;Blomqvist;J Clin Epidemiol,1998
5. Appendicitis and appendectomy in Norway 1990-2001;Bakken;Tidsskr Nor Laegeforen,2003