During a firing test in October 2000, the National Space Development Agency of Japan (NASDA) detected malfunctions in the LE-7A, which is loaded as the first stage in the H-IIA launch vehicle. The ...
A urea breath test is one way doctors may test for Helicobacter pylori (H. pylori) infection. H. pylori is a type of bacterium that can cause digestive disorders. This article will explain the test, ...
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