highly significantP < 0.01
However, most of the Western strains were from Neimenggu, and the association of CagA-ABC type with Neimenggu isolates was highly significant (χ 2 = 25.468, P < 0.01).
However, most of the Western strains were from Neimenggu, and the association of CagA-ABC type with Neimenggu isolates was highly significant (χ 2 = 25.468, P < 0.01).