論文（英文）
Efficacy of vonoprazan for gastroesophageal reflux symptoms in patients with proton pump inhibitor-resistant non-erosive reflux disease
Niikura R, Yamada A, Hirata Y, Hayakawa Y, Takahashi A, Shinozaki T, Takeuchi Y, Fujishiro M, Koike K. Efficacy of vonoprazan for gastroesophageal reflux symptoms in patients with proton pump inhibitor-resistant non-erosive reflux disease. Intern Med. 2018; 57(17): 2443–2450.