11.   Apparently in preparation for an attack, the Croatian army has reinforced positions near potentially vulnerable areas of the Serb-held territory.

12.   Areas most vulnerable to overuse injuries include shoulders, elbows, knees, ankles and backs.

13.   Black edges form when the highly vulnerable exposed areas suffer bacterial invasion.

14.   A player who rushes toward him for a collision might leave a vulnerable area exposed.

15.   Accordingly, FEMA is encouraging homeowners in vulnerable areas to buy weather-alert radios, Ms. Bunting said.

16.   But several lawmakers want to make it harder to collect on flood insurance in such vulnerable areas.

17.   Cherry and his colleagues created the mutations both randomly and in a more rational way, by examining the structure of the enzyme for vulnerable areas.

18.   Carr said fire officials would be given broad new powers to reduce fire hazards during the summer, by controlled burning of vulnerable areas and bulldozing in cooler seasons.

19.   For at the same time, the population has grown, and the development along vulnerable coastal areas has been especially vigorous.

20.   For the most part, preparations Tuesday concentrated on evacuating people from the most vulnerable areas.