21.   These are the harmful rays which cause skin cancer.

22.   Alpha particle radiation as the gas decays can damage the DNA in lung tissue, potentially causing cancer.

23.   Although estrogen has long been known to be able to promote the growth of some existing cancers, its possible role in causing breast cancer has been highly controversial.

24.   Ames maintains that in many cases it is the accelerated cell division, not the chemical per se, that is causing cancer.

25.   Anabolic steroids can injure the liver and heart, cause cancer, and spark aggression.

26.   And apart from the blast itself, dirty bombs kill relatively few people, although the radiation can cause cancers years later.

27.   And if such cells were put into patients, they could cause cancer.

28.   And brassieres, according to a new book, cause breast cancer.

29.   And it became a health question two years ago, when the U.S. Environmental Protection Agency declared that second-hand tobacco smoke causes cancer in humans.

30.   And if the phone is a cell phone that causes brain cancer, make another call to another lawyer.