Takagi, T., Naito, Y., Inoue, R., Kashiwagi, S., Uchiyama, K., Mizushima, K., … Itoh, Y. (2018). The influence of long-term use of proton pump inhibitors on the gut microbiota: an age-sex-matched case-control study. Journal of Clinical Biochemistry and Nutrition, 62(1), 100-105. https://doi.org/10.3164/jcbn.17-78