Danse, E., Hoang, P., Van Beers, B., Detry, R., Goncette, L., Dardenne, AN., Laterre, P.-F., & Pringot, J. (1997). Sonography as a first line diagnostic procedure for ischemic colitis. Gastroenterology, 112(4), A357-A357. https://doi.org/10.1053/gast.1997.v112.pm9024289 (Original work published 1997)