For example the case of n = 2 is the first example of endoscopy and is highly non-trivial [10].
Possible early detection of serious gastrointestinal disease, and other intangible reasons are valid reasons for referral to endoscopy (19).
Therefore, where clinical history indicates, it is advisable to proceed to endoscopy or barium studies of the gastrointestinal tract.
However, angiodysplasia may cause occult or intermittent blood loss and may require repeated endoscopy, angiography or radionuclide studies to demonstrate vascular malformations.
Endoscopy was considered a perfect test (100% accuracy) in diagnosing the underlying conditions.
We also assumed that gastroenterologists would initially consult with patients in their private office and subsequently perform endoscopies in a hospital setting.
A probability of 0 means that there is no misclassification; 1 assumes that all subjects in whom endoscopy did not suggest cancer actually had cancer.
At present nasal endoscopy should be reserved for those patients unable to go to the radiology department.
