Doesn't look like it, according to the Royal Society of Canada, which released a report (pdf) last month showing that the euthanasia rate has remained steady in the Netherlands; in both 1990 and 2005, 1.7 percent of Dutch deaths were assisted:

Some slippery-slope arguments that can be found in the literature about assisted dying are good examples of fear-mongering rather than of a realistic assessment of the risks that might accompany the decriminalization of assisted dying. For instance, there is no evidentiary basis for the fear that the decriminalization of assisted dying would relax the inhibitions that medical professionals presently feel for resorting to assisted dying in all but the most extreme of contexts.

Peter Singer wonders if these facts will continue to be ignored.