Has there been a decrease in the incidence of uncomplicated gastroduodenal peptic ulcer surgery?

1. Campos, R.R.
2. Paricio, P.P.
3. Mompeán, J.A.L.
4. Tebar, J.C.
5. Ayllón, J.G.
6. Albasini, J.L.A.
7. Escandell, M.A.O.