Evaluation of the direct cost of chronic viral hepatitis B in patients monitored at the hepato-gastroenterology department of the Yalgado OUEDRAOGO University Hospital. - Ouedraogo, Karim; Toure, Amadou Oury; Bocoum, Fadima Yaya; Diallo, Djenabou; Delamou, Alexandre; Kouanda, Seni (BMC Gastroenterology, 2025)