Investigation of the Salmonella typhi-paratyphi carrier state in cases of surgical intervention for gallbladder disease

1. Ristori, C.
2. Rodriguez, H.
3. Vicent, P.
4. Lobos, H.
5. D'Ottone, K.
6. García, J.
7. Pinto, M.E.
8. Nercelles, P.
9. Cisneros, L.