Comparative analysis of upper gastrointestinal endoscopy, double-contrast upper gastrointestinal barium X-ray radiography, and the titer of serum anti-Helicobacter pylori IgG focusing on the diagnosis of atrophic gastritis.
Yamamichi N, Hirano C, Takahashi Y, Minatsuki C, Nakayama C, Matsuda R, Shimamoto T, Takeuchi C, Kodashima S, Ono S, Tsuji Y, Fujishiro M, Wada R, Mitsushima T, Koike K.