1.   In conclusion, this study has evaluated the efficacy of four commercial serological tests in comparison with standard biopsy related tests.

2.   As entry criteria they all had active uncomplicated duodenal ulceration at endoscopy and H pylori infection diagnosed by a biopsy urease test, histology, and bacterial culture.

3.   H pylori infection was confirmed in the duodenal ulcer patients by microscopic examination of antral biopsy rapid urease test on antral biopsy, and by C urea breath test.

4.   The only way to find out was to remove a sample of nodes for a quick biopsy test known as a frozen section.

5.   At the hospital, Klestil underwent three days of artificial respiration, a biopsy test and short-term treatment with cortisone, the doctors said.

6.   Collinge also reported progress with a potential tonsil biopsy test.

7.   He said initial blood and nasal swab tests came back negative, but a biopsy test came back positive.