Helicobacter trogontum Mendes et al. 1996 Mendes E.N. Queiroz D.M. Dewhirst F.E. Paster B.J. Moura S.B. Fox J.G. Helicobacter trogontum sp. nov., isolated from the rat intestine. 1996 46 4 916 921 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-46-4-916 8863417