NC_019560.1 Helicobacter pylori Aklavik117, complete genome 1614447 NC_019561.1 Helicobacter pylori Aklavik117 plasmid p1HPAKL117, complete sequence 18787 NC_019562.1 Helicobacter pylori Aklavik117 plasmid p2HPAKL117, complete sequence 2891