Portip Pinlaor. (2015) Role of Helicobacter spp. infection in opisthorchiasis viverriniassociated cholangiocarcinoma. Khon Kaen University:ม.ป.ท.Portip Pinlaor. 2015. Role of Helicobacter spp. infection in opisthorchiasis viverriniassociated cholangiocarcinoma. ม.ป.ท.:Khon Kaen University;Portip Pinlaor. Role of Helicobacter spp. infection in opisthorchiasis viverriniassociated cholangiocarcinoma. ม.ป.ท.:Khon Kaen University, 2015. Print.