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INTERVAL. A space of time between two periods. When a person is unable to perform an act at any two given periods, but in the interval he has performed such act, as when a man is found to be insane in the months of January and March, and he enters into a contract or makes a will in the interval, in February, he will be presumed to have been insane at that time; and the onus will lie to show his sanity, on the person who affirms such act. See Lucid interval.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Another important benefit is the potential for cost savings by extending endoscopic surveillance intervals in low-risk patients, and by early therapeutic intervention in patients at high risk of progression, which is expected to reduce the significant cost burden associated with cancer treatment and end-of-life care.
There are other reasons that surveillance interval recommendations made after colonoscopy may not be accurate.
We don't have the evidence for increasing the surveillance intervals. In fact, preliminary evidence suggests Barrett's high-grade dysplasia or cancer might be missed if you followed the AGA guidelines."
There is no consensus about the subsequent surveillance interval.
An even longer surveillance interval could help in "freeing up capacity for screening with colonoscopy and other tests," said Dr.
It contains images of the major patterns of gastrointestinal neoplasia, with description of classification, key features, diagnostic criteria, clinical implications of surveillance intervals, frequently asked questions, diagnostic pearls and pitfalls, and sample sign-out notes, as well as normal histology.
These findings suggest surveillance intervals of at least 2 years may be appropriate, as these small lesions with low grade have negligible growth rates (52).
Since monochorionic twins are at increased risk for congenital heart disease, echocardiography is also performed between 18 and 22 weeks, with surveillance intervals of 2 weeks or shorter if potential complications are identified.

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