The most recent major change was between 1994 and 1998.
As evidence, some point to the recent changes in the Council's staff.
Congress will want to take note of one other recent change.
"We of course had heard nothing about the recent changes in your government," he said.
Three recent significant changes have created a great opportunity to focus research on the health needs of the population.
Scientists do not yet know the cause of the recent change.
However, there have been recent changes to the game, which has created new problems.
Despite all the recent changes, however, questions remain about the hospital's future.
It is the second recent major change on the issue by the Republican leaders.
Recent changes in tax policies might have opened the door to more information.
