Does complement contribute to the rejection of complete and class I major histocompatibility complex -- incompatible cardiac allografts?
These results demonstrate that the terminal complement component C6 can contribute to the rejection of class I or complete MHC-incompatible hearts in rats that have been characterized as "high" alloantibody responders.
There may be a very small decrement in fellows' abilities to intubate the cecum after a break in endoscopy training. Because these changes are so small, teaching endoscopy in blocks is probably adequate, if necessary to balance other clinical and research experience. However, further research is needed to determine whether a longitudinal endoscopy experience is superior for attaining and maintaining competency, to evaluate the effects of breaks longer than 8 weeks, and to determine whether the effects of breaks depend on the previous volume of experience with colonoscopy.