Prevalence, risk factors, and molecular epidemiology of hepatitis B and hepatitis delta virus in pregnant women and in patients in Mauritania. - Mansour W; Malick FZ; Sidiya A; Ishagh E; Chekaraou MA; Veillon P; Ducancelle A; Brichler S; Le Gal F; Lo B; Gordien E; Lunel-Fabiani F (Journal of medical virology, 2012)