This question was posed to a group of medical professionals.
A woman is tested for a particular type of cancer, and the test is positive. Worried, she asks how likely it is that she really has cancer. Which of these is the best answer?
This question was posed to a group of medical professionals.
A woman is tested for a particular type of cancer, and the test is positive. Worried, she asks how likely it is that she really has cancer. Which of these is the best answer?
If you’ve ever been cured of a stomach ulcer, you can be thankful for the work of an Australian scientist, Dr Barry Marshall. As a young researcher, he and a colleague developed the idea that stomach ulcers were not just caused by stress, but by a bacterium that somehow managed to survive the hydrochloric acid in our digestive system.