Worldwide incidence and prevalence of inflammatory bowel disease in the 21st century: a systematic review of population-based studies

  title={Worldwide incidence and prevalence of inflammatory bowel disease in the 21st century: a systematic review of population-based studies},
  author={Siew Chien Ng and Hai Yun Shi and Nima Hamidi and Fox E. Underwood and Whitney Tang and Eric I. Benchimol and Remo Panaccione and Subrata Ghosh and Justin C.Y. Wu and Francis Ka-Leung Chan and Joseph J.Y. Sung and Gilaad G. Kaplan},
  journal={The Lancet},

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