Letter: CYP3A4/5 genotype status and outcome of vonoprazan‐containing Helicobacter pylori eradication therapy in Japan. Issue 7 (April 2017) - Sugimoto, M.; Ban, H.; Hira, D.; Kamiya, T.; Otsuka, T.; Inatomi, O.; Bamba, S.; Terada, T.; Andoh, A.