- Relative contributions of NOS isoforms during experimental colitis: endothelial-derived NOS maintains mucosal integrity. Vallance, B.A., Dijkstra, G., Qiu, B., van der Waaij, L.A., van Goor, H., Jansen, P.L., Mashimo, H., Collins, S.M. Am. J. Physiol. Gastrointest. Liver Physiol. (2004)