11.   The remaining subject was achlorhydric during rhe first intubation study, and a further test after histamine receptor blockade was not therefore undertaken.

12.   The first field study using this technique suggests that in a population in which persistent diarrhoea and growth failure are endemic, achlorhydria is common.

13.   This is, however, the first study that also assesses gastroduodenal damage.

14.   This is the first study of hormone replacement therapy in patients with inflammatory bowel disease.

15.   Its aim is to provide the first comprehensive study of childhood injuries in the district and form the basis of an accident prevention drive.

16.   And it is the first systematic study of where, when and why these elegantly somber works were made.

17.   And the Harvard Community Health Plan has begun the first study of whether the Milliman standards can in fact improve health care while lowering costs.

18.   At the same time, it reported spectacular results from the first human study of its drug-coated stent.

19.   Because this is the first study to look at nationwide crimes against travelers, it is not possible to know whether that rate is rising or falling.

20.   Brain surgery is better than prolonged drug therapy for treating the most common form of epilepsy, according to the first study that directly compared the two treatments.