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APA Citation
Bohr, J., Tysk, C., Eriksson, S., Abrahamsson, H., & Järnerot, G. (1996). collagenous colitis: a retrospective study of clinical presentation and treatment in 163 patients.. Gut, 39(6), 846–851. http://access.bl.uk/ark:/81055/vdc_100135137873.0x000033