1. Appendectomy á froid a superfluous routine operation?;Engkvist;Acta Chir Scand,1971
2. “Cold” or interval appendectomy;Bülow;Ugeskr Laeg,1977
3. Recurrent appendicitis;Befeler;Arch Surg,1964
4. Conservative management of the appendix mass;Thomas;Surgery,1973
5. Appendiceal abscess revisited;Bradley;Arch Surg,1978