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APA Citation
Landi, B., Tkoub, M., Gaudric, M., Guimbaud, R., Cervoni, J. P., Chaussade, S., Couturier, D., Barbier, J. P., & Cellier, C. (1998). diagnostic yield of push-type enteroscopy in relation to indication. Gut, 42(3), 421–425. http://access.bl.uk/ark:/81055/vdc_100137783600.0x00004a