Cite
MLA Citation
A Marra et al.. “P218 Accuracy of Ultrasonography in Assessing Disease Activity in Pediatric Ulcerative Colitis: Preliminary Results of a two-center study.” Journal of Crohn's and colitis, vol. 16, n.d., p. i271. http://access.bl.uk/ark:/81055/vdc_100150514399.0x00000b