2012年3月22日木曜日

Workers in occupations involved in that manufacture and use of asbestos products were the subject of numerous?

by imagesbyk2 Photography
Question by starberries: Workers in occupations involved in that manufacture and use of asbestos products were the subject of numerous?
Workers in occupations involved in that manufacture and use of asbestos products were the subject of numerous epidemiological studies prior to 1986 when stringent new laws were imposed regulating this substance. One conclusion of these studies was that these workers had a greatly increased risk of lung cancer. Can you think of

Read more ...

0 件のコメント:

コメントを投稿