Deprez, P., Geubel, A., Van Beers, B., Materne, R., Gigot, J.-F., & Pringot, J. (1998). Extrahepatic cholestasis: Prospective comparison of magnetic resonance cholangiography and endoscopic ultrasonography. Gastroenterology, 114(4), A519-A519. https://doi.org/10.1016/S0016-5085(98)82105-7 (Original work published 1998)