S. Gruttadauria, F. Basile, G. Marino, A. Gentile, A. Vittoria Sgroi, and G. Gruttadauria, “Development in diagnosis and treatment of hepatic echinococcosis in a surgical department of a mediterranean centre over a 20-years period”, Ann Ital Chir, vol. 71, no. 1, pp. 99–106, Jan. 2000.