Risk of Helicobacter pylori infection in newborn babies of Helicobacter pylori-positive pregrant woman - DURSUN, Mehmet; GÖRAL, Vedat; ŞİMŞEK, Halis; YÜKSELEN, Vahit; HASÇELİK, Gülşen; CANORUÇ, Fikri (Turkish Journal of Gastroenterology, 1998)