I can only repeat what an ER Dr said when I asked about a test, "You have bee to Mayo, they do everything, and the results were negative. This Dr was at University hospital Madison Wisconsin, NOT a 2nd rated medical facility at all. I just returned from Mayo last night, I was scheduled to be in surgery this AM, but one of the team didn't agree with doing it without stopping my blood thinner first, I am not happy, but understand. They very much use the team method up there and put your heath first. Their LIVING motto is "The needs of the patient come first before anything else." You will be in great hands.