Duodenogastric reflux in patients with biliary lithiasis before and after cholecystectomy

1. Lujan-Mompean, J.A.
2. Robles-Campos, R.
3. Parrilla-Paricio, P.
4. Liron-Ruiz, R.
5. Torralba-Martinez, J.A.
6. Cifuentes-Tebar, J.