"Helicobacter japonicum" Shen et al. 2016 Dataset NCBI Taxonomy Classification phylum Campylobacterota class Epsilonproteobacteria order Campylobacterales family Helicobacteraceae genus Helicobacter species Helicobacter japonicus Name Homonyms Helicobacter japonicum "Helicobacter japonicum" Shen et al. 2016