Ornsiri Chueain และ Tanittha Chatsuwan. (2010) Characterization of rdxA, frxA, fdxA and hefA genes in metronidazole-resistant Helicobacter pylori. Chulalongkorn University:ม.ป.ท.Ornsiri Chueain และ Tanittha Chatsuwan. 2010. Characterization of rdxA, frxA, fdxA and hefA genes in metronidazole-resistant Helicobacter pylori. ม.ป.ท.:Chulalongkorn University;Ornsiri Chueain และ Tanittha Chatsuwan. Characterization of rdxA, frxA, fdxA and hefA genes in metronidazole-resistant Helicobacter pylori. ม.ป.ท.:Chulalongkorn University, 2010. Print.