11.   While travelling abroad, take preventive measures to avoid illness.

12.   Farmers are covering their crops as a preventive measure against frost.

13.   The provincial government introduced a number of preventive measures, including extending the scope for blood-serum tests to identify people infected with HIV.

14.   There is continuing debate about the use of exogenous oestrogen as a preventive measure for all anorexia patients but no controlled trials have yet been reported.

15.   The ANPE has also outlined a number of preventive measures.

16.   Because of the short period between birth and marketing, the treatment of PGE in lambs is an inferior policy compared with the preventive measures discussed below.

17.   Sixteen pubs and a nightclub are taking part in the scheme, being regarded as a preventive measure rather than replacing the normal reporting of incidents to the police.

18.   A great deal of medical opinion now recognises that preventive measures and wider availability of human organs for transplant are far more useful than animal experiments.

19.   And some preventive measures may not be effective.

20.   And some cautious couples are taking preventive measures, Stark said, by getting tested before their relationships advance.