The association of pleural empyema and perinephritic infection: apropos 4 cases

1. Vargas Puerto, A.
2. Alfageme Michavila, I.
3. Moreno Arrastio, L.
4. Beiztegui Sillero, A.
5. Barahona Martín, M.J.
6. Campoy Martínez, P.