At an international conference, an American, a British and a Russian were discussing the shortcomings of their diagnoses.

"I can't stand it some time. We treat people for cancer, and then they die of AIDS."

"I know what you mean." said the British. "We treat them for yellow fever, and it turns out they had malaria. Then, of course, they die."

"That is not a problem in our country" said the Russian doctor. "When we treat people for a disease, they die of *that* disease