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APA Citation
Kanno, T., Iijima, K., Abe, Y., Yagi, M., Asonuma, S., Ohyauchi, M., Ito, H., Koike, T., & Shimosegawa, T. (2016). helicobacter pylori‐negative and non‐steroidal anti‐inflammatory drugs‐negative idiopathic peptic ulcers show refractoriness and high recurrence incidence: Multicenter follow‐up study of peptic ulcers in Japan. Digestive endoscopy, 28(5), 556–563. http://access.bl.uk/ark:/81055/vdc_100034810886.0x000030